96 Records of the Indian, Museum. [Vol. VI, 



This species bears a somewhat close superficial resemblance to 

 5. Scorpio, Latr. ; but, apart from such details as the form of the 

 rostrum and the carination of the carapace, there is in S. gilesi a 

 well-developed three-jointed mandibular palp, an appendage which 

 in 5. Scorpio is entirely missing. 



Thirteen specimens of S. gilesi, the largest 94 mm. in length, 

 are in the collection. They were found between 35 and 80 fathoms 

 in the Persian Gulf, Bay of Bengal and Gulf of Martaban. 



Squilla hieroglyphica, sp. nov. 



This species is closely allied to the little known S. laevis, 

 Hess, a form which appears to be restricted to the coasts of New 

 South Wales. Mr. D. G. Stead has kindly presented us with 

 examples of that species and, on comparison, S. hieroglyphica 

 shows the following differences : — 



The anterior bifurcated portion of the median carina of the 

 carapace is entirely absent ; the carapace is much narrower than 

 in 5. laevis, the anterior width being only about half the median 

 length, including the rostrum. The rostrum is as long as wide 

 and its lateral margins converge to a narrr-w rounded apex. The 

 cornea of the eyes is set transversely on the stalk. The dactylus 

 of the raptorial claw is armed with only five teeth including the 

 terminal one. The lateral process of the sixth and seventh tho- 

 racic somites is more broadly rounded and the sublateral carinae 

 of the fourth abdominal somite end in .spines. The denticles on 

 the margin of the telson are represented by the formula 5, 10 — 12, 

 I, whereas in S. laevis the corresponding numbers are 2 — 3, 

 6—8, I. 



Both species agree in having the lateral process of the fifth 

 thoracic somite bilobed and that of the two succeeding somites uni- 

 lobed, differing in this respect from all other species with the 

 same number (eight) of longitudinal carinae on the abdomen; 

 from both species, moreover, the mandibular palp is absent. 



A single specimen of unknown locality, 53 mm. in length, is 

 preserved in the Indian Museum. 



Squilla gonypetcs, Wood-Mason, MS. 



5. gonypetes is closely allied to Brooks' S. quinquedentata , but 

 may be distinguished by the following characters : — 



The rostrum is distinctly longer and its upturned lateral 

 margins are rather more strongly convergent anteriorly. The 

 cornea of the eyes is a little more expanded and is set very ob- 

 liquely on the stalk. The antennular peduncle is longer than the 

 carapace excluding the rostrum. The outer inferior margin of the 

 merus of the raptorial claw is distally rounded and does not pro- 

 ject in the form of a spine. The sublateral carinae of the last 

 three, and the lateral carinae of the last four abdominal somites 

 end in .spines. 



