Kasagia sudhakari Padate, Manjebrayakath & Ng, 2019

Forges, Bertrand Richer De, Lee, Bee Yan & Ng, Peter K. L., 2021, The taxonomy of spider crabs of the genera Eurynome, Choniognathus, Seiitaiodes and Kasagia (Crustacea: Brachyura: Majidae) from southwest Indian Ocean, Zootaxa 5048 (3), pp. 301-333 : 328-329

publication ID	https://doi.org/ 10.11646/zootaxa.5048.3.1
publication LSID	lsid:zoobank.org:pub:951BE302-C0BF-4AA3-AE12-BBAC4EDEBAFB
DOI	https://doi.org/10.5281/zenodo.5556361
persistent identifier	https://treatment.plazi.org/id/03B187B7-FF87-FFAE-89B3-A0BDFF195C23
treatment provided by	Plazi
scientific name	Kasagia sudhakari Padate, Manjebrayakath & Ng, 2019
status

Treatment

Kasagia sudhakari Padate, Manjebrayakath & Ng, 2019 View in CoL

( Figures 1E View FIGURE 1 , 15D, E View FIGURE 15 , 16D, E View FIGURE 16 , 17C, D View FIGURE 17 , 19 View FIGURE 19 , 20D, E View FIGURE 20 )

Kasagia sudhakari Padate, Manjebrayakath & Ng, 2019: 291–295 View in CoL , figs. 2A–G, 3A–D, 4.

Material examined. 1 male (cl 8.7 mm, pcl 7.0 mm, cw 5.6 mm, bcw 5.1 mm), 1 ovigerous female (cl 8.1 mm, pcl 6.5 mm, cw 5.2 mm, bcw 4.9 mm) (MNHN-IU-2017-8791), stn CP3131, Mozambique Channel , 2554’S 3359’E, 193–194 m, coll. MAINBAZA, 9 April 2009 .

Diagnosis. Postfrontal region relatively short ( Fig. 16D, E View FIGURE 16 ); granules on posterior dorsal half of carapace closely packed ( Fig. 16D, E View FIGURE 16 ). Base of pseudorostral spines separated from supraorbital eave by distinct gap ( Fig. 16D, E View FIGURE 16 ). Supraocular eave eave relatively less raised, less strongly carinate, separated from pseudorostral spine by a distinct cleft ( Fig. 16D, E View FIGURE 16 ). Hepatic spine triangular, distinctly dentiform, slightly larger than postocular spine, directed outwards ( Fig. 16D, E View FIGURE 16 ); branchial margin of carapace with 4 short acuminate spines, even in adults ( Fig. 16D, E View FIGURE 16 ). Basal antennal article enlarged proximally, forming broad triangular tooth basally, with deep median longitudinal groove, margins carinate but not strongly raised ( Figs. 17D View FIGURE 17 , 19B View FIGURE 19 ). Epistome forming 3 lobes. Buccal cavity wider anteriorly; ischium of third maxilliped with longitudinal row of small granules ( Figs. 17D View FIGURE 17 , 19C View FIGURE 19 ). Anterior part of the male thoracic sternum wide, smooth. Male pleon narrow, with long triangular telson. Chelipeds long, spiny; merus longer than carapace with large spines on each margin; carpus long with distal spine, distal part wider; chela long with up to 5 spines on outer border ( Fig. 15D View FIGURE 15 ); fingers long slender. Ambulatory legs short, with dorsal margin of merus carinate, with small spinules in smaller specimens. G1 gently curved to almost straight ( Fig. 20D, E View FIGURE 20 ).

Type locality. Arabian Sea , off Cape Comorin, India .

Remarks. Kasagia sudhakari , from the western Indian Ocean, can be distinguished from K. elegans comb. nov. in having the supraorbital eave relatively less raised and carinate ( Fig. 16D, E View FIGURE 16 ) (versus distinctly more swollen and carinate in K. elegans comb. nov., Fig. 16A–C View FIGURE 16 ); the hepatic spine being distinctly dentiform ( Fig. 16D, E View FIGURE 16 ) (versus auriculiform and lobiform in K. elegans , Fig. 16A–C View FIGURE 16 ); the lateral branchial spines are acuminate even in adults ( Fig. 16D, E View FIGURE 16 ; Padate et al. 2019: fig. 2B) (versus fungiform in adult K. elegans comb. nov., Fig. 16D, E View FIGURE 16 ); and the G1 is gently curved to almost straight ( Fig. 20D, E View FIGURE 20 ; Padate et al. 2019: fig. 3A, B) (versus more sinuous in K. elegans comb. nov., Fig. 20A, B View FIGURE 20 ). In the above characters, K. elegans comb. nov. is actually morphologically closer to K. arbastoi from the Philippines, but in the latter species, the supraorbital eave is even more prominently raised, with the distal part appressed against the base of the pseudorostral spine ( Fig. 16F View FIGURE 16 ; Padate et al. 2019: fig. 5A, B) (versus less raised, separated from pseudorostral spine by a distinct gap in K. elegans comb. nov., Fig. 16A–C View FIGURE 16 ), the postfrontal region is relatively longer ( Fig. 16F View FIGURE 16 ; Padate et al. 2019: fig. 5A, B) (versus relatively shorter in K. elegans comb. nov., Fig. 16A–C View FIGURE 16 ), and the granules on the posterior dorsal half of the carapace are more widely spaced ( Fig. 16F View FIGURE 16 ; Padate et al. 2019: fig. 5A, B) (versus granules closely packed in K. elegans comb. nov., Fig. 16A–C View FIGURE 16 ).