Dicranodromia martini Guinot, 1995

Ng, Peter K. L. & Yang, Chien-Hui, 2021, On two new species of deep-sea carrier crabs (Crustacea, Brachyura, Homolodromiidae, Dicranodromia) from Taiwan and the Philippines, with notes on other Indo-West Pacific species, ZooKeys 1072, pp. 129-165 : 129

Dicranodromia martini Guinot, 1995

Figures 4 , 5 , 6 , 11A-C

Dicranodromia martini Guinot, 1995: 221, figs 19a-e, 20A-C; Ng and Naruse 2007: 48, figs 1, 3a, b, 4; Ng et al. 2008: 39, fig. 11.

Material examined.

Philippines: l ♂ (12.3 × 16.6 mm), station CP2396, 9°36.3'N, 123°42.0'E, Maribohoc Bay, Panglao, Bohol, Visayas , 609-673 m, PANGLAO 2005 Expedition, coll. MV DA-BFAR, 31 May 2005 (ZRC 2007.0105); l ♀ (28.1 × 34.2 mm), station CP2363, 9°06.0'N, 123°25.0'E, Bohol and Sulu Seas , 437-439 m, PANGLAO 2005 Expedition, coll. MV DA-BFAR, 26 May 2005 (ZRC 2007.0106, COI sequence: OK331337 ) .

Remarks.

Ng and Naruse (2007: 49) commented that the largest female they examined (28.1 × 34.2 mm, ZRC 2007.0106) has the carapace relatively more inflated with the posterolateral margin distinctly convex and the external orbital tooth more anteriorly directed when compared to smaller males. In addition, this female specimen is also relatively more hirsute (Fig. 4A, C, D versus Fig. 6A-C ). We see a similar pattern of variation in D. erinaceus sp. nov., where the smaller males are less swollen and with less setae overall when compared to larger females (Fig. 16A, B versus Fig. 13A, B ). In D. karubar , the exorbital tooth varies in the angle its directed outwards (Figs 8B, C , 10B ). As such, the differences observed for the specimens of D. martini examined here are regarded as intraspecific and/or size related.

Figures

Figure 4. Dicranodromia martini Guinot, 1995, ♀ (28.1 v 34.2 mm) (ZRC 2007.0106), Philippines A overall view B right third maxilliped C dorsal view of carapace D anterior part of carapace (right side denuded) E frontal view of cephalothorax.

Figure 5. Dicranodromia martini Guinot, 1995, ♀ (28.1 x 34.2 mm) (ZRC 2007.0106), Philippines A epistome, antennules, antennae and orbits B left chela C right P 3 D right P 5 E right P 5 dactylus F right P 4 G telson H posterior thoracic sternum showing spermatheca and female gonopores.

Figure 6. Dicranodromia martini Guinot, 1995, ♂ (12.3 x 16.6 mm) (ZRC 2007.0105), Philippines A overall view B dorsal view of carapace C anterior part of carapace (partially denuded) D male telson.

Figure 8. Dicranodromia karubar Guinot, 1993, ♀ (27.1 x 33.4 mm) (ZRC 2020.0348), Java A overall view B dorsal view of carapace C anterior right part of carapace (denuded) D frontal view of cephalothorax.

Figure 10. Dicranodromia karubar Guinot, 1993. A-C ♂ (28.7 x 34.7 mm) (ZRC 2020.0348), Java D ♀ (27.6 x 33.8 mm) (ZRC 2020.0348), Java A overall view B dorsal view of carapace C telson D left P 5 propodus and dactylus.

Figure 11. A-C Dicranodromia martini Guinot, 1995, ♂ (12.3 x 16.6 mm) (ZRC 2007.0105), Philippines D-F D. karubar Guinot, 1993, ♂ (28.7 x 34.7 mm) (ZRC 2020.0348), Java A, D left G 1 (ventral view) B, E left G 1 (dorsal view) C, F left G 2. Setae for all structures not figured. Scale bars: 1.0 mm.

Figure 13. Dicranodromia erinaceus sp. nov., holotype ♀ (14.0 x 18.0 mm) (NTOU B 00126), Taiwan A overall view B dorsal view of carapace C front and anterior part of carapace D left orbit and first anterolateral spine.

Figure 16. Dicranodromia erinaceus sp. nov., paratype ♂ (8.2 x 12.5 mm) (ZRC 2021.0085), Taiwan A overall view B dorsal view of carapace C pleon D anterior thoracic sternum and G 1 s in situ.