24 Memoirs of the Indian Museum. [Vol. IV, 



ii. Lateral carinae of first five abdominal 



somites bicarinate .. .. stridulans, p. 78. 



II. Raptorial dactylus with ten to eighteen (usually thirteen 



to seventeen) teeth ' . . . . . . investigatoris , p. 80. 



II. First five abdominal somites each with more than eight longi- 

 tudinal carinae. 



A. Lateral process of sixth thoracic somite not bilobed ; first 



five abdominal somites with a median carina, making nine 

 in a transverse series [mandibular palp present ; raptorial 

 dactylus with five teeth '] . . . . . . supplex, p. 82. 



B. Lateral process of sixth thoracic somite bilobed ; numerous 



sharp carinae on abdominal somites. 



/. Carapace with normal number of carinae and with 

 numerous short ridges and tubercles ; abdomen tuber- 

 culate laterally with numerous carinae in middle line ; 

 mandibular palp absent ; raptorial dactylus with six or 

 seven teeth ' .. .. .. .. costata,-p 84. 



77. Entire surface of carapace and abdomen multicarinate ; 

 mandibular palp present ; raptorial dactylus with five 

 teeth 1 .. .. .. .. .. multicarinata, p. 86. 



II. Upper margin of propodus of raptorial claw with usual series of pectina- 

 tions replaced by stiff spines ; spines well-spaced, large and small alter- 

 nating more or less regularly (raptorial dactylus with nine, rarely eight, 

 teeth). 1 



A. Antennular peduncle shorter than rostrum and carapace combined ; 

 lateral margin of sixth thoracic somite not distinctly bilobed ; sub- 

 median carinae of fifth abdominal somite not ending in spines ; ulti- 

 mate segment of outer uropod suffused with black only on its inner 

 longitudinal half . . . . . . . . . . raphidea, p. 88. 



B. Antennular peduncle fully as long as rostrum and carapace combined ; 

 lateral margin of sixth thoracic somite distinctly bilobed ; submedian 

 carinae of fifth abdominal somite ending in spines; ultimate segment 



of outer uropod jet-black with a white midrib . . . . annandalei, p. 92. 



1. Squilla latreillei ( Ey doux and Souleyet). 



Plate I, figs. 1-4. 



1841. Clorida latreillei, Eydoux and Souleyet, Voy. de la 'Bonite, Zool., I, Crust., p. 205, pi. v, 



figs. 2-5. 

 1880. Chloridella latreillei, Miers, Ann. Mag. Nat. Hist. (5), V, p. 15. 



1894. Squilla latreillei. Bigelow, Proc. U. S. Nat. Mus. XIV, p. 509. 



1895. Chloridella latreillei, Wood-Mason, Figs, and Desc. of nine Squillidae, p. 6, pi. iv, figs. 6-13. 



The dorsal surfaces of the carapace and abdomen are smooth and without trace 

 of punctuation. The carapace is more or less triangular in shape ; anteriorly it is a 

 little more than half as broad as long, while its greatest width measured in front of the 

 poster o-lateral angles is about equal to its median length. Except for an indistinct 



1 Including the terminal tooth. 



