美国田纳西州奥科河流域小龙虾一新种(十足目:奥科)。

IF 0.9 4区 生物学 Q3 ZOOLOGY
Zootaxa Pub Date : 2025-04-01 DOI:10.11646/zootaxa.5618.1.7
Roger F Thoma, Bronwyn W Williams
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引用次数: 0

摘要

ocoeensis sp. 11 .被描述为来自田纳西州的Ocoee河峡谷地区。本种在形态上与Cambarus hiwasseensis Hobbs, 1981最相似,但与C. hiwasseensis在以下方面不同:第一准足类螯合肢一般较少雕刻,通常有一排palmer结节,如果第二排出现非常弱的发育,由六个或更少的结节组成,侧缘不平行,侧影最弱,但通常没有;乳晕长度是宽度的2.5-4.1倍,最窄处有5-8个点;成熟时的尺寸较小,总甲壳长度在21.8 ~ 30.9 mm之间(海杉为24.6 ~ 40.0 mm);触角尺度在中点最宽。它可以与其他形态相似的物种区分开来-那些具有渐尖喙的物种-来自佐治亚州北部,田纳西州东南部和北卡罗来纳州西部地区的海瓦西河流域,缺乏侧喙棘/结节和颈椎。Cambarus ocoeensis sp. 11 .在遗传上与Cambarus bartonii (Fabricius, 1798)种复合体的一个未描述成员最密切相关。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Cambarus ocoeensis, a new species of crayfish (Decapoda: Cambaridae) from the Ocoee River Basin of Tennessee, USA.

Cambarus ocoeensis sp. nov. is described from the Ocoee River Gorge area of Tennessee. The species is morphologically most similar to Cambarus hiwasseensis Hobbs, 1981, but differs from C. hiwasseensis in the following ways: first pereopod chelae in general less sculpted, usually with one row of palmer tubercles, if second row present very weakly developed and consisting of six or fewer tubercles, lateral margin not costate, lateral impression weak at most but usually absent; areola length 2.5-4.1 times greater than width, having 5-8 punctations in narrowest part; size at maturity smaller with MI ranging from 21.8 to 30.9 mm total carapace length (24.6-40.0 mm in C. hiwasseensis); and antennal scale broadest at midpoint. It can be distinguished from other morphologically similar species-those with acuminate rostra-from the Hiwassee River basin of northern Georgia, southeast Tennessee, and western North Carolina area in lacking lateral rostral spines/tubercles and cervical spines. Cambarus ocoeensis sp. nov. is genetically most closely related to an undescribed member of the Cambarus bartonii (Fabricius, 1798) species complex.

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来源期刊
Zootaxa
Zootaxa 生物-动物学
CiteScore
1.90
自引率
33.30%
发文量
1895
审稿时长
2.7 months
期刊介绍: Zootaxa is a peer-reviewed international journal for rapid publication of high quality papers on any aspect of systematic zoology, with a preference for large taxonomic works such as monographs and revisions. Zootaxa considers papers on all animal taxa, both living and fossil, and especially encourages descriptions of new taxa. All types of taxonomic papers are considered, including theories and methods of systematics and phylogeny, taxonomic monographs, revisions and reviews, catalogues/checklists, biographies and bibliographies, identification guides, analysis of characters, phylogenetic relationships and zoogeographical patterns of distribution, descriptions of taxa, and nomenclature. Open access publishing option is strongly encouraged for authors with research grants and other funds. For those without grants/funds, all accepted manuscripts will be published but access is secured for subscribers only.
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