Eophrixus brevicauda (Chopra, 1923), n. comb.
? “Parasite” de Man, 1913: 263.
Hemiarthrus brevicauda Chopra, 1923: 416, 419, 430, 431, 439–440, pl. 11, figs. 8–9. — Monod, 1933: 244.
Phrixus (Paraphrixus) brevicauda: Caroli, 1930: 259 .
Paraphrixus brevicauda: Nierstrasz and Bren- der a Brandis, 1931: 205. — Markham, 1992a: table 1.
? Paraphrixus brevicauda: Markham, 1990: 563–564 .
MATERIAL EXAMINED: None.
HOSTS AND LOCALITIES: Infesting Synalpheus hastilicrassus Coutière, 1905, S. tumidomanus tumidomanus (Paul’ son, 1875) ( Alpheidae), Indonesia (?), Andaman Islands, Hong Kong, 2–9 fathoms (= 3.7–16.5 m).
REMARKS: Markham (1985a) transferred the type species of Paraphrixus, Phryxus subcaudalis Hay, 1917, to Eophrixus, synonymizing the two genera. However, Markham (1990, 1992a) continued to use the combination Paraphrixus brevicauda while admitting (1990) that “ Paraphrixus is no longer a valid name, but revision of the genus is not appropriate here.” It is clear that, based on current data, Hemiarthrus brevicauda must be placed in Eophrixus, as this is the genus with which it shares the most characters and, as a synonymized genus, it cannot be used as a valid name. Rediscovery of E. brevicauda is desirable in order to determine whether it really belongs in Eophrixus, as Chopra’ s (1923) description is incomplete and the type specimens are inaccessible.