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Descriptions of two new species of Callogobius (Gobiidae) found in Japan
Ichthyological Research ( IF 0.6 ) Pub Date : 2021-05-20 , DOI: 10.1007/s10228-021-00817-2
Akihito , Yuji Ikeda

Callogobius albipunctatus sp. nov. and Callogobius dorsomaculatus sp. nov. are described from Japan. Both species are included in the sclateri group, characterized by elongate ctenii on the caudal fin base scales, the female urogenital papilla with two lateral projections, and the presence of cephalic sensory papillae Row 20 (preopercular row). Callogobius albipunctatus is characterized by cephalic sensory papillae Row 16 (transverse mandibular rows) comprising 10 papillae rows and a posteriormost single papilla, connected pelvic fins with a low frenum and concave posterior margin, cephalic sensory canal pores B'D(s)FH', 25–29 longitudinal row scales, 8–10 transverse row scales, and 7–11 predorsal scales, and C. dorsomaculatus by Row 16 comprising 11 papillae rows and a posteriormost single papilla, connected pelvic fins with a concave posterior margin but lacking a frenum, cephalic sensory canal pores B'C(s)D(s)EFH' or B'C(s)D(s)EFGH', 20–26 longitudinal row scales, 7–9 transverse row scales, and 6–10 predorsal scales. The cephalic sensory system in juvenile C. albipunctatus is described. Row 16, which is represented by three patterns within the genus, is redefined.



中文翻译:

在日本发现的两个新物种Callogobius(Gobiidae)的描述

淡水Callogobius albipunctatus sp。十一月 和Callogobius dorsomaculatus sp。十一月 从日本描述。这两个物种都包含在sclateri组,其特征在于细长ctenii在尾鳍基秤,女性泌尿生殖乳头具有两个侧突出部,和头感官乳头行20(preopercular行)的存在。Callogobius albipunctatus的特征是头侧感觉乳头第16行(下颌横行),包括10个乳头行和最后一个单个乳头,连接骨盆鳍,带低系带,后缘凹,头端感觉管孔B'D(s)FH', 25–29个纵向行标尺,8–10个横向行标尺和7–11个背前标尺以及C. dorsomaculatus由第16排组成,包括11排乳头和最后的单个乳头,连接的骨盆鳍后凹,但没有系带,头感觉管孔B'C(D)EFH'或B'C(D) (s)EFGH',20–26个纵向行标尺,7–9个横向行标尺和6–10个背前标尺。描述了幼年C. albipunctatus的头部感觉系统。重新定义了第16行,该行由属内的三个模式表示。

更新日期:2021-05-20
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