Cuezzo María Gabriela, Lima Augusto P DE, Santos Sonia B Dos
Instituto de Biodiversidad Neotropical/CONICET-UNT, Crisóstomo Álvarez, 722, 4000 Tucumán, Argentina.
Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro, Rua São Francisco Xavier, 524, PHLC, Sala 525-2, 20550-900 Rio de Janeiro, RJ, Brazil.
An Acad Bras Cienc. 2018 Jul-Sep;90(3):2753-2765. doi: 10.1590/0001-3765201820170261. Epub 2018 Jul 19.
A detailed anatomical revision on Solaropsis brasiliana (Deshayes 1832) has been carried out. New characters on shell, anatomy of soft parts, and a review of the genus distribution in South America, as well as clarification on S. brasiliana distributional area are provided in the present study. Solaropsis brasiliana is diagnosed by its globose, solid, and hirsute shell, with periphery obsoletely angular, bursa copulatrix with a thick, long diverticulum, a thick, long flagellum and a penis retractor muscle forked, with the vas deferens passing through it. This compiled information was used to test the phylogenetic position of S. brasiliana within South American Pleurodontidae through a cladistics analysis. In the phylogenetic hypothesis obtained, S. brasiliana is sister group of S. gibboni (Pfeiffer 1846) and the monophyly of the genus Solaropsis Beck is also supported. Here, we sustain that the distribution of S. brasiliana is restricted to Brazil, inhabiting the States of Rio de Janeiro, Espírito Santo, Bahia and Minas Gerais.
对巴西索拉螺（Solaropsis brasiliana，德夏耶斯，1832年）进行了详细的解剖学修订。本研究提供了关于该物种贝壳、软体部分解剖结构的新特征，回顾了其在南美洲的属分布情况，并明确了巴西索拉螺的分布区域。巴西索拉螺的特征为：贝壳呈球形、坚实且具刚毛，周缘呈不明显的角状，交媾囊具厚且长的盲管，具厚且长的鞭毛，阴茎缩肌分叉，输精管从中穿过。这些汇总信息被用于通过分支系统学分析来检验巴西索拉螺在南美洲侧齿螺科中的系统发育位置。在所得的系统发育假说中，巴西索拉螺是吉氏索拉螺（Solaropsis gibboni， Pfeiffer，1846年）的姐妹群，同时也支持了索拉螺属（Solaropsis Beck）的单系性。在此，我们认为巴西索拉螺的分布仅限于巴西，栖息于里约热内卢州、圣埃斯皮里图州、巴伊亚州和米纳斯吉拉斯州。
