Pantaleão João A F, Terossi Mariana, Costa Rogério C, Mantelatto Fernando L
Laboratory of Biology and Ecology of Marine and Freshwater Shrimps (LABCAM), Faculty of Sciences (FC), São Paulo State University (UNESP) Brazil.; Email:
Laboratory of Bioecology and Crustacean Systematics (LBSC), Faculty of Philosophy, Sciences and Letters at Ribeirão Preto (FFCLRP), University of São Paulo (USP), Brazil; Email:
Zootaxa. 2013 Dec 20;3750:367-74. doi: 10.11646/zootaxa.3750.4.5.
The morphology of the first zoeal stage of Periclimenes paivai Chace is described and illustrated for the first time. Larvae were obtained from three females with embryos, caught in the type locality (Cananéia, São Paulo state, Brazil). The morphological characters are detailed and compared with all previous descriptions of larvae in the genus (P. amethysteus, P. brevicarpalis, P. diversipes, P. pandionis, P. sagittifer and P. soror). The zoeae I of Periclimenes species are very similar, but P. paivai can be separated from the other six species by means of five characteristics: 8 plumose setae on the inner margin of the antennal scale, one spine on the endopod of the maxillule, one cuspidate seta on the basal endite of the maxilulle, one plumose seta on the single coxal endite of the maxilla, and one plumose seta on the endopod of the maxilla. Remarks from a comparative analysis of available descriptions of the genus are furnished.
首次描述并图示了派氏围胸虾（Periclimenes paivai Chace）第一期溞状幼体的形态。幼体取自三只怀有胚胎的雌虾，捕获于模式产地（巴西圣保罗州卡纳内亚）。详细描述了形态特征，并与该属之前所有关于幼体的描述（amethysteus围胸虾、brevi carpalis围胸虾、diversipes围胸虾、pandionis围胸虾、sagittifer围胸虾和soror围胸虾）进行了比较。围胸虾属的第一期溞状幼体非常相似，但派氏围胸虾可通过五个特征与其他六个物种区分开来：触角鳞片内缘有8根羽状刚毛、小颚内肢有一根刺、小颚基部内叶有一根尖形刚毛、上颌单节基节内叶有一根羽状刚毛、上颌内肢有一根羽状刚毛。还提供了对该属现有描述进行比较分析的评论。
