{"title":"Review of the Teiid Lizard Genus Ptychoglossus","authors":"D. M. Harris","doi":"10.2307/1467082","DOIUrl":"https://doi.org/10.2307/1467082","url":null,"abstract":"Evaluation of 305 museum specimens of Ptychoglossus reveals that 10 of the 11 taxa previously associated with the genus represent valid species, including P. nicefori (Loveridge), removed from synonymy with P. brevifrontalis Boulenger, and the type species, P. bilineatus Boulenger, removed from synonymy with Leposoma picticeps Cope which is reasoned to be a junior synonym of Arthrosaura reticulata (O'Shaughnessy). Modern descriptions, including information on hemipenial morphology of all but two species, are provided for these, plus the five new species: P. danieli, P. gorgonae, P. myersi, P. romaleos, and P. vallensis. Intraspecific variation is assessed for all but three of the 15 species; those three are still known only from single specimens. Within a species, females tend to attain slightly longer bodies than males. Judging from comparisons of limb lengths to body lengths, this is due to elongation of the female trunk. An identification key to the 15 recognized species is included.","PeriodicalId":56309,"journal":{"name":"Herpetological Monographs","volume":"8 1","pages":"226-275"},"PeriodicalIF":2.5,"publicationDate":"1994-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2307/1467082","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68499034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"RIBOSOMAL DNA AND THE PHYLOGENY OF FROGS","authors":"D. Hillis, L. Ammerman, M. T. Dixon, R. Sá","doi":"10.2307/1466955","DOIUrl":"https://doi.org/10.2307/1466955","url":null,"abstract":"Phylogenetic analysis of 1656 aligned sites in the 28S ribosomal RNA gene of frogs supports some of the recently recognized higher groups of anurans but provides counter-support for others. The 28S rDNA data support the monophyly of the recently recognized Pipanura (me- sobatrachians plus neobatrachians), which in turn indicates paraphyly of archaeobatrachians. Me- sobatrachians (pelobatoids plus pipoids), which are either considered paraphyletic or weakly sup- ported as monophyletic in morphological analyses, also receive support as a monophyletic group from the 28S rDNA data. Hyloidea (= Bufonoidea), which is widely recognized but lacks mor- phological support, receives some molecular support as being monophyletic. However, Ranoidea, which is supported by morphology, is counter-supported by ribosomal DNA. In particular, den- drobatids do not group with ranids (but sometimes group with hyloids). A combined analysis of the molecular data with the morphological data of Duellman and Trueb (1986:Biology of Am- phibians) supports Pipanura, Mesobatrachia, Neobatrachia, and Hyloidea, but shows the ranoids as paraphyletic (with Dendrobatidae related to Hyloidea). The agreement between molecular and morphological data in several regions of the anuran tree indicates an approaching stabilization of traditionally labile higher frog classification.","PeriodicalId":56309,"journal":{"name":"Herpetological Monographs","volume":"7 1","pages":"118"},"PeriodicalIF":2.5,"publicationDate":"1993-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2307/1466955","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68494608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Systematic studies of the Costa Rican moss salamanders, genus Nototriton, with descriptions of three new species","authors":"D. A. Good, D. Wake","doi":"10.2307/1466956","DOIUrl":"https://doi.org/10.2307/1466956","url":null,"abstract":"Study of allozyme variation, external morphology, and osteology reveals that there are more species of moss salamanders (genus Nototriton) in Costa Rica than the two currently recognized. The three species for which names are available are valid, and new diagnoses are presented for them; three additional species are described. The phylogenetic relationships and biogeography of the six species are investigated. The radiation of Nototriton in present-day Costa Rica has involved miniaturization accompanied by both morphological and ecological specialization. Costa Rican species inhabit moss-mats and leaf-litter; most of the remaining species in the genus are bromeliad-dwellers. The revised genus Nototriton includes two Mexican, one Guatemalan (another, detected in the present study, remains undescribed), two Honduran, and six Costa Rican species. The six Costa Rican species appear to form a monophyletic group, but the phylogenetic relationships of the two northern species groups to each other and to the southern group remain uncertain.","PeriodicalId":56309,"journal":{"name":"Herpetological Monographs","volume":"7 1","pages":"131-159"},"PeriodicalIF":2.5,"publicationDate":"1993-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2307/1466956","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68494686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"PHYLOGENETIC RELATIONSHIPS OF THE SALAMANDER FAMILIES: AN ANALYSIS OF CONGRUENCE AMONG MORPHOLOGICAL AND MOLECULAR CHARACTERS","authors":"A. Larson, W. W. Dimmick","doi":"10.2307/1466953","DOIUrl":"https://doi.org/10.2307/1466953","url":null,"abstract":"The phylogenetic relationships of the ten salamander families (Ambystomatidae, Amphiumidae, Cryptobranchidae, Dicamptodontidae, Hynobiidae, Plethodontidae, Proteidae, Rhyacotritonidae, Salamandridae and Sirenidae) were examined using 209 phylogenetically infor- mative characters, including 177 from ribosomal RNA sequence variation, 20 from head and trunk morphology, and 12 from cloacal anatomy. Our analysis invokes the principle of \"total evidence\" by combining all relevant data to generate a phylogeny, and then examining patterns of character congruence on that phylogeny. The morphological and molecular data sets were not highly incon- gruent; only 4-26% of the total incongruence among characters occurs between the morphological and molecular data sets and the remainder occurs within them. The combined analysis differs from an earlier analysis of the molecular data alone primarily by favoring monophyly of the internally fertilizing salamanders. Our favored working hypothesis of salamander family relationships places the Sirenidae as the sister group to all remaining salamanders, and the Cryptobranchoidea (Cryp- tobranchidae and Hynobiidae) as the sister group of the internally fertilizing salamanders (all remaining families). Among the internally fertilizing families, the Ambystomatidae and Dicamp- todontidae are closely related and form a sister group to the Salamandridae; the Proteidae (rep- resented by the genus Necturus) is the sister group to these three families combined. The Am- phiumidae, Plethodontidae and Rhyacotritonidae represent early branching events within the clade containing the internally fertilizing salamanders. New molecular data on hynobiids (including the genera Batrachuperus, Hynobius, Onychodactylus and Salamandrella) are compatible with mono- phyly of the Hynobiidae.","PeriodicalId":56309,"journal":{"name":"Herpetological Monographs","volume":"7 1","pages":"77"},"PeriodicalIF":2.5,"publicationDate":"1993-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2307/1466953","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68494870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Caecilian phylogeny and biogeography inferred from mitochondrial DNA sequences of the 12S rRNA and 16S rRNA genes (Amphibia : Gymnophiona)","authors":"S. Hedges, R. Nussbaum, L. Maxson","doi":"10.2307/1466952","DOIUrl":"https://doi.org/10.2307/1466952","url":null,"abstract":"The classification and phylogeny of the caecilians has received much attention in the past decade, yet no consensus has been reached. We present new mitochondrial ribosomal gene sequence data from 13 caecilian species representing 10 genera from four of the six recognized families. Out of 1208 total sites, 890 were aligned, 475 were variable, and 329 were informative under the parsimony criterion. A phylogeny for these taxa supports the Caudata (as represented by Amphiuma) as the sister lineage to the Gymnophiona, the basal position of the Rhinatrematidae and Ichthyophiidae, the paraphyly of the Caeciliaidae, and the monophyly of the Seychellean caecilians. These sequence data support previous morphological studies suggesting that the typhlonectids were derived from Neotropical caeciliaids, and therefore the Typhlonectidae is synonymized within the family Caeciliaidae. Species previously placed in the Typhlonectidae are assigned to a separate subfamily (Typhlonectinae) of the Caeciliaidae. Resolution of relationships within the largest family, the Caeciliaidae, remains the major task of caecilian systematics.","PeriodicalId":56309,"journal":{"name":"Herpetological Monographs","volume":"7 1","pages":"64-76"},"PeriodicalIF":2.5,"publicationDate":"1993-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2307/1466952","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68494734","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"THE PALEOZOIC RELATIVES OF LISSAMPHIBIANS","authors":"A. Milner","doi":"10.2307/1466948","DOIUrl":"https://doi.org/10.2307/1466948","url":null,"abstract":"Recent theories of relationship between the living and Paleozoic amphibians are discussed. The clade Amphibia, incorporating the crown-group Lissamphibia, also includes the Nectridea, Colosteidae, Microsauria and the temnospondyls. The Nectridea and Colosteidae may form the sister clade to the clade comprising the Microsauria, the temnospondyls and the Lissam- phibia. The Nectridea are a distinct clade of Permo-Pennsylvanian dwarf amphibians and are not of polyphyletic origin from within the temnospondyls, nor are they closely related to lissamphibians. The balance of evidence favors a monophyletic origin of all lissamphibians from within the tem- nospondyls but the number of character states involved is not so great that this theory can be considered robust. The alternative possibility that gymnophionans are microsaur derivatives is less well supported but remains open. If the Microsauria formed the stem-group to the Gymnophiona, this would not violate the monophyly of the living amphibians or of lissamphibian soft-anatomy characters, although to extend the Lissamphibia to include temnospondyls and microsaurs would be unacceptable. Within the temnospondyl grade of evolution, the only two families that are plausible lissamphibian relatives are the Amphibamidae and the Branchiosauridae. Each shares a few different character states with the Lissamphibia but the Amphibamidae share more character states and also show nesting of derived character states towards the lissamphibian condition. While the Branchiosauridae were perceived as completely neotenous, they were less likely to be the stem- group of the Lissamphibia than the Amphibamidae, but the recent discovery of metamorphosed branchiosaurids will undoubtedly alter this viewpoint.","PeriodicalId":56309,"journal":{"name":"Herpetological Monographs","volume":"7 1","pages":"8"},"PeriodicalIF":2.5,"publicationDate":"1993-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2307/1466948","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68494172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"AMPHIBIAN RELATIONSHIPS: PHYLOGENETIC ANALYSIS OF MORPHOLOGY AND MOLECULES","authors":"D. Cannatella, D. Hillis","doi":"10.2307/1466947","DOIUrl":"https://doi.org/10.2307/1466947","url":null,"abstract":"Amphibia and its major groups are defined according to principles of phylogenetic taxonomy, and the implications of the definitions for amphibian systematics are discussed. The results of phylogenetic analyses of Amphibia, Anura, Caudata, and Gymnophiona from morpho- logical and molecular studies are compared, based on papers published in the symposium \"Am- phibian relationships: Phylogenetic analysis of morphology and molecules\" at the 1990 meetings of the American Society of Zoologists in San Antonio, Texas. Several issues related to the use of morphological and molecular data sets are discussed briefly: quality and quantity of data, homology assessment, nonindependence of characters, sampling of taxa, and resolution of trees derived from different data sets.","PeriodicalId":56309,"journal":{"name":"Herpetological Monographs","volume":"7 1","pages":"1"},"PeriodicalIF":2.5,"publicationDate":"1993-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2307/1466947","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68494029","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"THE MAJOR CLADES OF FROGS","authors":"L. Ford, D. Cannatella","doi":"10.2307/1466954","DOIUrl":"https://doi.org/10.2307/1466954","url":null,"abstract":"The relationships among the major lineages of frogs are summarized and an un- ranked, phylogenetic taxonomy of Anura is proposed. The names of taxa are defined according to phylogenetic principles. Several currently recognized taxa, such as \"Archaeobatrachia\", \"Discoglos- soidea\", \"Leiopelmatidae\", and \"Discoglossidae\" are paraphyletic, and the names are abandoned or redefined such that the associated taxa are monophyletic. Node-based names are proposed for several unnamed but previously recognized taxa: Leiopelmatanura, Bombinanura, Discoglossanura, and Pipanura. Pipanura is the node-based name for Mesobatrachia and Neobatrachia. Mesobatrachia comprises Pelobatoidea and Pipoidea. Pelodytidae is defined as a stem-based name to accommodate certain fossil pelobatoid taxa. Rhinophrynus, Rhinophrynidae, and Pipimorpha are defined as stem- based names that accommodate fossils within Pipoidea. tEopelobatinae* is a metataxon. Relationships within Neobatrachia are largely unresolved. There is no evidence for the monophyly of \"Myobatrachidae\", but Limnodynastinae and Myobatrachinae are each monophyletic. Sooglos- sidae appears most closely related to Myobatrachinae. \"Leptodactylidae\" and \"Ranidae\" are non- monophyletic groups. Scaphiophryninae* and Arthroleptidae* are metataxa. The name Scoptanura is used for the subclade of Microhylidae that excludes scaphiophrynines. Dendrobatidae, a taxon of controversial status, is placed within Ranoidea.","PeriodicalId":56309,"journal":{"name":"Herpetological Monographs","volume":"7 1","pages":"94"},"PeriodicalIF":2.5,"publicationDate":"1993-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2307/1466954","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68494496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Non-Traditional Characters in the Assessment of Caecilian Phylogenetic Relationships","authors":"M. Wake","doi":"10.2307/1466950","DOIUrl":"https://doi.org/10.2307/1466950","url":null,"abstract":"Phylogenetic relationships among caecilians and of caecilians to other amphibians are not well understood. A generally accepted hypothesis of relationships exists for families of caecilians, but relationships among genera and among species remain unresolved for the most part. Current hypotheses of relationships are based largely on morphological characters, primarily external features and some osteology; molecular data are accruing. However, I contend that morphology has not been explored adequately in the search for characters of systematic utility. I present a summary of work in progress on the examination of aspects of the neuroanatomy and reproductive morphology of caecilians and a discussion of the possible contribution of such characters to phylogenetic analysis. I conclude that morphologists should, whenever possible, both place their work in a phylogenetic context, and use their data to contribute to phylogenetic hypotheses.","PeriodicalId":56309,"journal":{"name":"Herpetological Monographs","volume":"7 1","pages":"42"},"PeriodicalIF":2.5,"publicationDate":"1993-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2307/1466950","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68494841","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"THREE NEW SPECIES OF ELEUTHERODACTYLUS FROM EASTERN CUBA, WITH NOTES ON VOCALIZATIONS OF OTHER SPECIES (ANURA: LEPTODACTYLIDAE)","authors":"S. Hedges, A. Estrada, Richard S. Thomas","doi":"10.2307/1466962","DOIUrl":"https://doi.org/10.2307/1466962","url":null,"abstract":"Three new arboreal species of Eleutherodactylus are described from upland regions of eastern Cuba. Eleutherodactylus guantanamera is relatively widespread in Guantanamo Prov- ince and also occurs in Santiago de Cuba Province, E. mariposa is known only from the type- locality on the Meseta del Guaso (Guantinamo Province), and E. melacara is known only from Pico Turquino in Santiago de Cuba Province. Two of these species, E. guantanamera and E. melacara represent the first bromeliad specialists known from Cuba, and they possess a head shape and eye orientation found in other bromeliad-dwelling species. Call and chromosome variation are discussed for all 10 members of this arboreal subgenus in Cuba. THE grandiose frog genus Eleuthero- dactylus (>500 species) is represented in the West Indies by two large and wide- spread subgenera, Euhyas (80 species) and Eleutherodactylus (44 species), and one small subgenus (Pelorius; six species) on Hispaniola (Hedges, 1989). Molecular ev- idence suggests that the divergence of the two large subgenera occurred in the late Cretaceous or early Cenozoic (Hass and Hedges, 1991). Although members of each subgenus have invaded a wide range of ecological niches, these two groups can be characterized by their predominant eco- logical habits. Species in the subgenus Eu- hyas usually occupy terrestrial niches and commonly are found close to the ground or on rocks. West Indian species of the subgenus Eleutherodactylus nearly always","PeriodicalId":56309,"journal":{"name":"Herpetological Monographs","volume":"6 1","pages":"68"},"PeriodicalIF":2.5,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2307/1466962","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68495442","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}