59 



Key to the families of Homolidea. 



I. The slender basal joint of the eyestalk is not mucii longer, or may 

 even be much shorter, than the terminal joint. The gill-plnmes 

 are 13 or 14 on either side and epipodites are present on the 

 chelipeds and often also on the first two pairs of ambulatory legs Homolid^. 



11. The slender basal joint of the eyestalk is much longer than the 

 terminal joint. The gill-plumes are 8 on either side and no epi- 

 podites are present on the chelipeds or legs ... ... Lateeillidj;. 



The genus Hoviologenus Henderson = Hoinolopsis A. M. Edw. (A. Milne Edwards, Bull. Mus. 

 Comp. Zool. VIII. 1880, p. .34 : Hendei-son, Challenger Anomura, p. 20 : Bouvier, Bull. Soc. 

 Philomath. Paris (8) VIII. 1896, p. 63 : Ortmann, Bronn's Thier- Reich, Malacostraca, p. 1156 : 

 Milne Edwards and Bouvier, Crust. Decap. Hirondelle et Princesse Alice, Monaco, 1899, p. 12j, 

 appears to represent a di.stiuct section of the HomoUJse, differing from all other known Eomolidia 

 in the following characters: — the epistome is reduced and is hidden between the basal joints of 

 the antennules, the 2nd maxillipeds have neither an epipodite nor a gill-plume (podobranch), and 

 the external maxillipeds cany a podobranch. 



Family HoMOLiDiE, Alcock. 



Homolidse sensu restricto, Alcock, Jonrn. Asiatic Soc. Bengal, LXVIII., pt. 2, 1899, p. 130. 



Carapace elongate-quadrangular, or ovoid, or urn-shaped. Antennal flagella 

 longer than the carapace. The slender basal joint of the eyestalk is either very 

 little longer, or a good deal shorter, than the terminal joint. The external 

 maxillipeds are pediform or subpediform. In all the Indian species that belon'r 

 to this family the gills are 1-i on either side and there are epipodites on the 

 chelipeds and first two pairs of ambulatory legs, the branchial formula being as 

 follows : — 



Kei/ to tlie genera of Homolidae. 



Carapace deep. External maxillipeds decidedly pediform. Terminal 

 joint of the eyestalk very much longer tban the basal joint, which 

 is entirely hidden by the basal joint of the antennule. Dactylus 

 of last pair of legs not nearly half the length of its propoditc and 

 closing against the iisiai end of the latter joint 



Hypsophrts 



