Ctenocheles Kishinouye, 1926

Kou, Qi, Poore, Gary C. B. & Li, Xinzheng, 2024, A new species of Ctenocheles Kishinouye, 1926 (Decapoda, Axiidea, Ctenochelidae) from China, Zootaxa 5529 (2), pp. 381-395 : 382

Genus Ctenocheles Kishinouye, 1926

Ctenocheles Kishinouye, 1926: 36 (type species: Ctenocheles balssi Kishinouye, 1926 , by original designation and monotypy).— Holthuis 1967: 377.—de Saint Laurent 1973: 514.— Poore & Griffin 1979: 277.—de Saint Laurent & Le Loeuff 1979: 81–83.— Manning & Felder 1991: 784.— Sakai 1999: 88.— Davie 2002: 464.— Sakai 2005: 237–238.— Sakai 2011: 486– 487 (key to species).— Hyžný et al. 2014: 249–250 .— Poore & Dworschak 2017: 122 (synonymy).— Poore et al. 2019: 118–119 .— Poore & Ahyong 2023: 199–200.

Tosacallianassa Sakai, 2016: 813 (type species: Tosacallianassa hatasagaensis Sakai, 2016 , by original designation and monotypy).

Remarks. For the most recent diagnoses of Ctenocheles Kishinouye, 1926 , see Poore et al. (2019) and Poore & Ahyong (2023). Distributions and depths ranges of species are given in Table 2 . Ctenocheles differs from Ctenocheloides Anker, 2010 , the only other axiidean genus with elongate, pectinate cheliped fingers, by: (1) the presence of an acute, projecting rostrum; (2) the small and poorly pigmented corneas; (3) the longer fingers of the major cheliped (≥ 1.5 times the length of palm); (4) the longer and sharper teeth on the cutting edges of the major cheliped; (5) the truncate posterior margin of telson; and (6) the presence of a notch on the distal margin of the uropodal exopod (except for Ctenocheles plantei ( Burukovsky, 2005)) . Besides, Ctenocheloides inhabits shallower water (less than 15 m, usually 1–1.5 m) than Ctenocheles (deeper than 10 m, up to 800 m) ( Matsuzawa & Hayashi 1997; Anker & Pachelle 2013; Poore 2015), which might explain why it has well-developed corneas.