{"title":"The Use of Ultraviolet Light as a Non-destructive Method for Revealing Fragments of Lost Pigmentation in Faded Alcohol-preserved Collection Specimens","authors":"A. L. Netto‐Ferreira, K. Luckenbill","doi":"10.1635/053.165.0112","DOIUrl":"https://doi.org/10.1635/053.165.0112","url":null,"abstract":"ABSTRACT. \u0000 A method for visualizing previously pigmented areas of the body with the employment of black-light spectrum bulbs is described. Under ultraviolet (UV) light, fish musculature fluoresces, whereas melanophores absorb incident light, revealing nearly lost contrast between once strongly and poorly pigmented areas of the body that has faded over time. Although a yet unknown extent of melanophore preservation is necessary to expose such contrast, the method was successful on a partially faded holotype of Characidium fasciadorsale Fowler, a nearly completely faded holotype of Characidium etheostoma Cope, and most remarkably for the blackened, previously mold-infested and nearly destroyed holotype of Holotaxis laetus Cope. In the latter case, the method also allowed better recognition of scale pockets on the skin.","PeriodicalId":54579,"journal":{"name":"Proceedings of the Academy of Natural Sciences of Philadelphia","volume":"165 1","pages":"221 - 229"},"PeriodicalIF":0.7,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1635/053.165.0112","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67546968","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Redescription of Microsternarchus bilineatus (Fernández-Yépez, 1968) (Gymnotiformes: Hypopomidae, Microsternarchini), with the designation of a neotype","authors":"Cristina Cox Fernarndes, A. Williston","doi":"10.1635/053.165.0107","DOIUrl":"https://doi.org/10.1635/053.165.0107","url":null,"abstract":"ABSTRACT. Microsternarchus bilineatus Fernández-Yépez, 1968 is a small, inconspicuous electric fish distributed in the Orinoco, Amazon and Tocantins basins. Its holotype and paratypes from Río San José, a tributary of Río Guariquito, Orinoco basin, Venezuela, are apparently lost. We examined 14 specimens collected in Río San Bartolo, also a tributary of Río Guariquito, 110 km by river from Río San José. Because of its proximity to the type locality and apparent conformity to the original description, we used these newly collected specimens to redescribe M. bilineatus using external morphology, morphometrics, meristics, and osteology including high-resolution X-ray computed tomography. In order to address geographic variation we compared Río San Bartolo specimens with others of, or close to, M. bilineatus from Casiquiare river and from two streams in Roraima state, Brazil. In our analysis specimens from distant localities differ in the interobital distance and mouth size, number of anal-fin rays and skeletal features in the dentary and cranial fontanelles. Detailed revision of the genus will require a stable description of type species. Therefore, we designate INHS 111262 as neotype for M. bilineatus.","PeriodicalId":54579,"journal":{"name":"Proceedings of the Academy of Natural Sciences of Philadelphia","volume":"165 1","pages":"105 - 115"},"PeriodicalIF":0.7,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1635/053.165.0107","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67547308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"“At What do you Think the Ladies will Stop?” Women at the Academy","authors":"P. Stroud","doi":"10.1635/053.162.0116","DOIUrl":"https://doi.org/10.1635/053.162.0116","url":null,"abstract":"","PeriodicalId":54579,"journal":{"name":"Proceedings of the Academy of Natural Sciences of Philadelphia","volume":"162 1","pages":"195 - 206"},"PeriodicalIF":0.7,"publicationDate":"2013-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1635/053.162.0116","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67547078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}