io6 Memoirs of the Indian Museum. [Vol. IV, 



Hitherto known from two specimens only. The type, 88 mm. in length, was found 

 at Elphinstone I. (de Man), while the second example is recorded from the Red Sea 

 (Nobili). 



g, Pseudosquilla, stylifera (H. Milne-Edwards). 

 Plate VII, figs. 84, 85. 



1837. Gonodactylus stvli ferns, H.Milne-Edwards, Hist. Nat. Crust., II, p. 330, pi. xxvii, figs. 9-14. 



1839. Gonodactylus styliferus, Randall, Journ. Acad. Sei. Philadelphia (1), VIII, p. 147. 



1849. Gonodactylus styliferus, Nicolet, in Gay's Hist, fisica de Chile, Zool., Ill, p. 225, pi. ii, fig. 3. 



1880. Pseudosquilla stylifera, Miers, Ann. Mag. Nat. Hist. (5), V, p. 112. 



1894. Pseudosquilla stylifera, Bigelow. Proc. U.vS. Nat. Mus., XVII, p. 502, fig. 3, p. 505. 



igoo. Pseudosquilla stylifera , Holmes, Occ. Papers Calif. Acad. Sei., VII, p. 220. 



1900. Pseudosquilla stylifera, Whitelegge, Mem. Australian Mus., IV, p. 198. 



1910. Pseudosquilla bigelowi, Rathbun, Proc. U.S. Nat. Mus., XXXVIII, p. 608. 



The carapace is broad, its posterior breadth being equal to its mid-dorsal length. 

 The cervical groove is distinct laterally, but is absent in the middle line. The 

 antero-lateral angles are subrectangular, the postero-lateral broadly rounded and 

 carinate. The rostrum is smooth above, triangular, longer than broad, with straight 

 lateral margins converging to a narrow rounded apex. 



The cornea of the eyes is greatly swollen and is set very obliquely on the stalk. 

 In dorso-internal view the peduncle terminates in a narrow triangular area, invested 

 on two sides by the cornea. The dorsal processes of the ophthalmic somite consist of 

 a pair of large triangular lobes directed straightly outwards on either side and wholly 

 exposed in dorsal view. The anterior margin of the somite is produced between the 

 bases of the eyestalks and terminates in an acute point. There are no distinct dorsal 

 processes on the antennal protopodite (fig. 84). 



The mandibular palp is composed of two or three segments. 



There is a stout tooth on the dorsal edge of the raptorial carpus at its distal end. 

 The propodus bear only two mobile spines at the proximal end of its upper margin ; 

 the outer of the two edges opposed to the dactylus is furnished with a series of fine 

 pectinations on its basal two- thirds. The dactylus consists of a single stout spine, at 

 the base almost square in section. Its inner margin is microscopically serrate, but 

 is without trace of the large teeth found in most species of the genus. 



The margins of the sixth and seventh thoracic somites are rounded and reflected a 

 little outwards. The postero-lateral angles of the abdominal somites are not spinous. 

 The first four somites are smooth ; the fifth has a shallow longitudinal depression on 

 either side ; the sixth has eight blunt longitudinal carinae which do not terminate in 

 spines. The two submedian pairs are obscure or obsolete in very large specimens. 



On the telson there are five longitudinal carinae, a median, one pair of parallel 

 intermediates and the marginals. The median carina does not terminate in a spine. 

 The marginal teeth are large and broad and each is strengthened by a short rounded 

 keel. The submedians have small movable tips. There are no submedian or lateral 

 denticles; but between the submedian and intermediate teeth there are one or two 

 conspicuous rounded lobes (fig. 85). 



