42 Memoirs of the Indian Museum. | [VoL. IV, 
Carinae. Abdominal somites. 
Submedian re sc td 6 
Intermediate 5 sc Se (SO) teen sb 
Lateral .. At Ra “i Ty Seo Os 
Marginal .. ae a a T2535 45/5¢ 
In addition, on the posterior margin of the fifth abdominal somite between the 
submedian and intermediate carinae, there is a small group of one to four spines. 
These spines do not occur in any other species of Squidla. 
The dorsal surface of the telson is finely rugose, but is otherwise almost smooth 
on either side of the median crest. Faint traces of symmetrical rows of pits are occa- 
sionally visible. ‘The six marginal teeth are well developed and the submedian pair 
possesses movable tips. On the inner face of the submedian spines there is a broad 
lobe which is sometimes separated from the spine by an incision and so becomes a 
submedian denticle. The intermediate denticles vary in number from nine to twelve 
and there is one lateral. The praelateral denticle is absent. 
The inner margin of the ventral process of the peduncular segment of the uropods 
is finely serrate. The lobe on the outer edge of the longer spine is large in the two 
specimens examined ; but, according to Bigelow, is proportionately small in very large 
.examples. 
Both the individuals in the Indian Museum are female. According to Bigelow 
_ there are no marked secondary sexual differences. 
Squilla armata seems to be an isolated form and does not appear to possess any 
close affinity with any other species of the genus. 
The two specimens examined are registered as follows :— 
res? New Zealand. Chas. Chilton. 22,64 and 80 mm. 
The species is restricted to southern latitudes. It has been recorded from the 
Gulf of St. George on the Atlantic coast of Patagonia, from Cape Horn and from the 
Pacific coast of Patagonia and Chili (Milne-Edwards, Nicolet, Bigelow) and in these 
localities Bigelow notes that it is found between 51 and 122 fathoms. It is also known 
from New Zealand (Kirk, Chilton), from New South Wales (Whitelegge) and from 
S. Africa, off Cape Point Lighthouse, in 45 fathoms (Stebbing). 
12, Squilla scorpio, Latreille. 
Plate II, fig. 30. 
1825. Squilla scorpio, Latreille, Encycl. Méthod, X, p. 472. 
1837. Squilla scorpio, H. Milne-Edwards, Hist. Nat. Crust., II, p. 522. 
1847. Squilla scorpio, White, List Crust. Brit. Mus., p. 84. 
1849. Squilla scorpio, De Haan, in Siebold’s Fauna Japonica, Crust., p. 221. 
1880. Squilla scorpio, Miers, Ann. Mag. Nat. Hist. (5), V, p. 18, pl. ii, fig. 7. 
1892. Squilla scorpio, de Man, in Weber’s Zool. Ergebn. Nied. Ost-Ind., II, p. 518. 
1893. Squilla scorpio, Henderson, Trans. Linn. Soc. Zool. (2), V, p. 453.! 
1894. Squilla scorpio, Bigelow, Proc. U.S. Nat. Mus., XVII, p. 510. 
1901. Sguilla scorpio, Lanchester, Proc. Zool. Soc., II, p. 554. 
