174 ^^6 Philippine Journal of Science 1915 



Pseudosquilla megalophthalma, specimens of which I have not 

 hitherto had an opportunity of examining, belongs to a small 

 group of very closely allied species which are somewhat difficult 

 to determine with any facility. Apart from color, which in 

 this case is very characteristic, P. megalophthalma may be distin- 

 guished from its allies by the form of the rostrum, the length 

 of the spines forming the bifurcate process of the uropods, and 

 in particular by the presence and position of the first lateral 

 carina of the telson. This carina in P. megalophthalma runs to 

 the apex of the lateral tooth of the telson margin, whereas in 

 P. oculata it terminates behind the base of the intermediate 

 marginal tooth. In P. ciliata, P. ornata, and P. oxyrhyncha, 

 the other three species comprised in this group, the first lateral 

 carina is wholly absent. 



Genus LYSIOSQUILLA Dana 



Lysiosquilla maculata (Fabricius). 



Lysiosquilla maculata Kemp, Mem. Ind. Mus. (1913), 4, 111, PI. VIII, 

 figs. 86-91. 

 No. 0-362. No locality given, 1 ?, 125 mm. No. 0-1108. Taytay, Pala- 

 wan, "Coll. by natives," May 24, 1913, 1 ?, 235 mm. No. 0-1109. Taytay, 

 Palawan, "Coll. by natives," June 4, 1913, 1 ?, 280 mm. 



In the two very large females the teeth on the raptorial claws 

 are, as is usual, very short and less numerous than in males. In 

 specimen 0-1108 there are respectively 8 and 9, and in specimen 

 0-1109, 7 and 9. On these limbs there are tufts of hairs on 

 the carpus and at the base of the propodus. 



In the small specimen the left hand claw, as in the male, bears 

 10 slender teeth including the terminal one, while on the right 

 propodus, which is smaller and appears to have been regener- 

 ated, there are only 9 teeth. 



In the two individuals in which the color is preserved the 

 dark patch on the telson extends middorsally to the distal 

 margin, isolating an oval, pale area on either side. On the 

 middle of the last abdominal somite there is in one specimen 

 a large transverse pale patch; this segment, as a rule, is 

 wholly pigmented. 



Lysiosquilla acanthocarpus Miers. 



Lysiosquilla acanthocarpus Kemp, Mem. Ind. Mus. (1913), 4, 120. 

 No. 0-329. Bantayan, Cebu Province, 1 ?, 66 mm. 



The specimen has been preserved in formalin, and no trace 

 of its original color remains. 



