108 OKHAMANDAL MAHINE ZOOLOGY REPORT 



Abdomen soft, coiled, and well developed. Carapace elongate. Eye-stalks 

 slender. Ophthalmic scales large and separated by a movable rostrum. Antennal 

 acicle well developed, with the fiagellum usually setose. 



Chelipedes dissimilar, the left being much the greater. The fingers move in an 

 oblique direction and have their tips calcareous and acuminate. The palp of the first 

 pair of maxillae has a recurved fiagellum. Fourth pair legs subchelate, fifth pair 

 chelate, both with corneous granules on their distal outer surface. Abdominal 

 segments four in number, and situated on the left side, uniramous in the male and 

 biramous in the female, except in the last one. The gills are phyllobranchs, and are 

 thirteen in number on each side. 



Diogenes investigatoris, Alcock. 



Carapace fairly elongate, with the anterior and lateral edges serrulate. 



Rostrum a simple non-serrated rod, tapering towards the free extremity, and equal 

 in length to the ophthalmic scales. These latter have their free edges spinulose. Eye- 

 peduncles shorter than the antero-lateral border of the carapace and reaching to the 

 base of the terminal joints of the antennal and antennular peduncles. The antennal 

 fiagellum is slightly shorter thah the carapace, and is coarse and setose. The antennal 

 acicle does not overlap the base of the last joint of the peduncle. Left chelipede 

 very much larger than the right, and a little longer than the carapace. 



The outer surface of the hand is granulous, and there is a row of spines on the 

 upper part of the outer surface of the palm. The legs are setose along their edges 

 only and smooth elsewhere. 



Three apparently young male specimens inhabiting shells of Nassa glans and 

 Sistrum spectrum. 



Length of carapace, 9 mm. ; colour in spirit, dirty white. 



Localities : — (l) Okha, 5 fms. ; (2) off W. coast of Aramra. 



Previously recorded from : — (1) Off" Vizagapatam Coast, 20 fms. Alcock. (2) 

 Ceylon Pearl Banks, 5 fms. Southwell. 



Clibanarius, Dana. 



Dana (7), Stimpson (34), Heller (17), Miers (26), Haswell (14), Henderson (19), 

 Milne-Edwards and Bouvier (10), Stebbing (33), Ortmann (29). 



Carapace elongate, broadened posteriorly, and calcified in front of the cervical 

 groove, as in many other genera of Paguridse. Rostrum short and distinct. 

 Abdomen soft and spirally coiled. 



Eye-stalks slender. Ophthalmic scales usually closely approximated. Antenna! 

 acicle short. Antennal fiagellum long and non-setose. Exopodite of the three 



