Cantopotamon, Huang & Ahyong & Shih, 2017
|
publication ID |
https://doi.org/ 10.6620/ZS.2017.56-41 |
|
persistent identifier |
https://treatment.plazi.org/id/9B11878D-FFC8-FFE1-4665-B048FBB2FE61 |
|
treatment provided by |
Felipe |
|
scientific name |
Cantopotamon |
| status |
gen. nov. |
Genus Cantopotamon View in CoL n. gen.
urn:lsid:zoobank.org:act:6CBDB48E-9199-4D62-B3B9-928B999057A9
Type species Cantopotamon zhuhaiense n. gen., n. sp., by present designation.
Diagnosis: Carapace broader than long; dorsal surface slightly convex, branchial regions relatively flat ( Fig. 1A View Fig ); postorbital and epigastric cristae visible, confluent ( Fig. 1A View Fig ); external orbital angle bluntly triangular, separated from anterolateral margin by gap ( Figs. 1A, B View Fig ); median lobe of posterior margin of epistome triangular ( Fig. 1B View Fig ). Third maxilliped ischium relatively broad; exopod reaching beyond anterior margin of ischium, with flagellum ( Fig. 2D View Fig ). Male pleon triangular, reaching anteriorly almost to level of posterior margins of cheliped coxae ( Fig. 1C View Fig ). G1 slender, inner proximal section of sub-terminal segment curved dorsally, terminal segment relatively short, sinistrally twisted on left G1 ( Figs. 1D View Fig , 2B, C View Fig , 9 View Fig ). G2 basal segment subovate ( Fig. 2A View Fig ). Vulva small, ovate, not reaching suture of sternites 5/ 6 ( Fig. 11 View Fig ).
Etymology: The genus name is a combination of Canton, synonym for Guangdong, the province in which this genus occurs, and the generic name Potamon . Gender: neuter.
Remarks: Although superficially similar to some species of Yarepotamon , Cantopotamon n. gen. can easily be distinguished by its confluent postorbital cristae and epigastric cristae ( Fig. 1A View Fig ) (versus separate in Yarepotamon , cf. Dai & Türkay, 1997: pl. II, fig. 2), twisted terminal segment of the G1 ( Fig. 2C View Fig ) (versus not twisted in Yarepotamon , cf. Dai & Türkay, 1997: fig. 6, 4) and relatively small female vulvae that do not reach the suture of sternites 5/6 ( Fig. 11A View Fig ) (versus female vulvae reaching suture of sternites 5/ 6 in Yarepotamon , cf. Dai & Türkay, 1997: fig. 6, 7). Yarepotamon is currently being revised by the first author. Specimen details of comparative material are given in Appendix I.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.