204 Bvlletin Vanderbilt Marine Mtiseum, Vol. VII 



i. e., off the Orissa coast ; northeast Bay of Bengal, 65 fathoms, 

 and in the Persian Gulf, 35 fathoms. All of the above specimens 

 are deposited in the Calcutta Museum, which makes the two large 

 specimens procured by the "Alva" of unusual va,lue to science, 

 since they appear to be the first record of the species in an Ameri- 

 can Museum, as well as to establish another record for it. 



Material examined: Two very fine specimens, 145 millime- 

 ters long and 142 millimeters long, from Singapore, Malay Straits, 

 collected by the "Alva." 



Colour: Unrecorded. In the present spirit specimens there 

 remain a pair of large, suboval, blackish-gray pigment spots, one 

 adjacent on either side, near the base of the median carina of the 

 telson; on the distal, inner and outer branches of the uropoda 

 there are also fine specklings of blackish-gray pigment spots, 

 forming a dark shading on the inner half of each blade. 



Technical description : This species is very closely allied to 

 Squilla lata Brooks, which was founded on specimens taken by 

 the "Challenger" in the Arafura Sea, south of New Guinea, in 49 

 fathoms, and deposited in the British Museum of National His- 

 tory, the largest specimen recorded being 82 millimeters long. 

 Mr. Kemp (1913) recorded the second finding of S. lata by the 

 "Investigator," based on three specimens taken in the Gulf of 

 Martaban, Burma, 53 fathoms, deposited in the Calcutta Museum, 

 and described differences existing between the Bay of Bengal speci- 

 mens and those from the Arafura Sea, suggesting that if these 

 differences proved to be constant, it may be necessary to establish 

 a subspecific rank for the Gulf of Martaban specimens. The fact 

 that Mr. Kemp had specimens of S. lata as well as the above cited 

 series of S. gilesi is of interest, eliminating any doubt of their 

 confusion. 



The "Alva" specimens measure, respectively, 145 millimeters 

 long from apex of rostrum to posterior margin of telson and 142 

 millimeters, each being more than one and a half times as long as 

 the largest known specimen previously taken. 



The rostrum is 1.5 times as long as its proximal width and the 

 lateral margins are very sinuate, more so that in S. lata, the prox- 

 imal half being convex, thence concave, tapering to a narrowed, 

 subacuminate apex. It is not carinate dorsally. The basal anten- 

 nal article, seen dorsally on either side of the rostrum, bears antero- 

 laterally an acuminate, triangulate process, directed obliquely out- 



