328 Surg.-Capt. A. Alcock on 



larger claw they are separated throughout, but especially at 

 the base, where there is found on tlic dactylus a large trun- 

 cated tubercle and on the immobile finger a corresponding 

 excavation and bulging. The carpus of the shorter claw has 

 a strong bend outwards. 



Two males were dredged in the Andaman Sea, along with 

 M. micropSj at 480 fatlioms. The largest measures 

 60 millim. from the tip of tlie rostrum to the end of the 

 telson, and 175 millim. from the tip of the extended larger 

 cheliped. 



MuNiDOPSis, Whiteaves. 



80. Munidopsis stylirostris, Wood-Mason. 



Munidopsis stylirostris, Wood-Mason, Ann. & Mag. Nat. Hist., Feb. 

 1891, p. 201. 



The general surface of the body is finely pubescent 

 dorsally. 



The greatest breadth of the carapace is about three fourtlis 

 of the greatest length (without the rostrum). The rostrum, 

 wliicli is styliform and strongly upcurved, is nearly two 

 thirds of the carapace in length ; the front margin of the 

 carapace is slightly oblique, and is unarmed except for a 

 strong spine at the antero-lateral angle, and the lateral 

 margins, which are parallel throughout or even a little diver- 

 gent anteriorly, are, except for the antero-lateral spine, either 

 unarmed or only slightly rugose anteriorly ; the posterior 

 margin is raised, but is quite smooth ; the tumid gastric 

 region is marked by the presence of rugosities which ante- 

 riorly culminate in a pair of coarse spiuelets, one on each side 

 of the middle line. 



The abdominal terga from the second to the fourth inclu- 

 sive are transversely channelled, both margins of the channel 

 being raised into finely ctenate crests. 



The eye-stalks, which are very stout and very short, are 

 not united, are freely movable, and are not prolonged beyond 

 the globular corneaj. 



The greatly inflated basal joint of the antcnnulary 

 peduncles has the two external terminal spines very strong 

 and long, projecting far beyond the eyes. 



The antennary tiagellum is not much longer than the 

 chelipeds. 



The external maxillipeds have the inner edge of the ischio- 

 podite evenly toothed throughout and the lower edge of the 

 nieropoditc furnished with two large unciform spines near 

 the proximal end. 



