19 1 1.] S. Kemp : Ncu' Crustacea Slouiatopoda. 97 



Four specimens, the largest 56 inni. in length, from the Per- 

 sian Gulf, Andaman Is. and the Arrakan Coast. 



Squilla boopis, sp. nov. 



This species is allied, though not very closely, to 6'. quinque- 

 dentata and 5. gonypetes, and is easily distinguished from both by 

 the enormous size of the eyes. 



The rostrum bears a sharp median longitudinal carina in its 

 distal half. The cornea is set very obliquely on the stalk and its 

 greatest breadth is considerably more than one third the median 

 length of the carapace. The antero- lateral angles of the carapace 

 are produced as acute points which project outwards and down- 

 wards and scarcely reach at all forwards beyond the adjacent 

 anterior margin. The lateral margin of the seventh thoracic so- 

 mite is not bilobed but is angled acutely behind and rectangularly 

 in front. The sublateral carinae of the last five and the lateral 

 carinae of all the abdominal somites terminate in spines. 



The dactylus of the raptorial claw bears five teeth including 

 the terminal one and the lateral processes of the fifth and sixth 

 thoracic somites are bilobed. In both these characters S. boopis 

 resembles the two species mentioned aobve. 



A single specimen, 89 mm. in length, from the Gulf of Marta- 

 ban, 67 fathoms. 



Squilla holoschista, Wood-Mason, MS, 



This well-marked species is closely allied to Squilla nepa, 

 I^atr., and agrees with it in the form of the eyes, the number of 

 s])ines on the raptorial dactylus and the shape of the lateral pro- 

 cesses of the fifth to seventh thoracic somites. It ma^'- be dis- 

 tinguished by the following characters : — 



The median carina of the carapace, in front of the cervical 

 groove, is bifurcated anteriorl}^ for less than one third of its length 

 and is finely bicarinate throughout almost its entire extent. The 

 cornea of the eyes is slightly but noticeably less expanded than 

 in S. nepa, specimens of similar size being compared. The sub- 

 median carinae of the fourth abdominal somite never end in spines. 



In the adult male the distal end of the propodus of the rap- 

 torial claw is much broader than in 5. ncpa of the same sex and 

 the external margin of the dactylus is only very feebly sinuous. 



Numerous specimens from the east coast of India, from 

 Ceylon to the Ganges delta. 



The three following forms are \-ery closely allied to Squilla 

 oratoria . de Haan (= S. affinis, Berthold), and in order to facilitate 

 comparison the following short account of the principal features 

 which separate that species from its near allies is given : — 



The breadth of the carapace, measured at the antero-lateral 

 angles is distinctly less than half its median length, including the 

 rostrum. The median carina of the carapace is bifurcated anter- 

 iorly for about one quarter its length in front of the cervical 



