The Amphipoda of Tale Sap. 
537 
Grandidierella gilesi Chilton. 
Grandidierella gilesi, Chilton, 1921, p. 552. 
Localities. Patani River, below town, Siamese Malay States. Water fresh, 
but probably subject to tidal influence. 5-2-16. One specimen. 
Station 32. Shore collecting at Kaw Deng, just inside mouth of 
lake. Tale Sap. 
„ 34. Shore collecting at Kaw Yaw, Tale Sap. 
This species was obtained at two stations, in two case along with the preceding 
species. Various stages in the growth of the males were noticed, but none of them 
show any real distinction from the Chilka lyake forms. 
Distribution. Tale Sap, Chilka Sap. 
Photis longicaudata Bate and Westw. ? 
Photis longicaudata, Chilton, 1921, p. 554. 
A few small specimens similar to those obtained from the Chilka Lake. 
Localities. Station 23. East Channel between Kaw Yaw and mainland. 
29. Shore Collecting at Ban Hua Wang on Koh Yaio. 
„ 34. Shore Collecting at Kaw Yaw. 
Podoceropsis insignis, sp. nov. 
Fig- 3- 
Locality. Station 27. Four specimens, length about 4 ram. 
Male. — First antenna with the second joint of the peduncle longer than either 
the first or third ; flagellum about as long as peduncle, of about 12 joints ; accessory 
flagellum minute, one- jointed; under surface of the whole antenna densely haired. 
The second antenna much longer and stouter than the first, the last two joints 
of the peduncle subequal, the penultimate being slightly the broader ; under surface 
of both densely fringed with long hairs and setules; flagellum about as long as 
peduncle, 13-jointed. First gnathopod with carpus and propod subequal, oval, palm 
oblique, slightly convex, not well defined, margin of palm and of the concave surface 
of the finger very minutely serrate. Second gnathopod with propod very large, 
as long as the basal joint, broad, palm not defined, but bearing two sharp teeth 
with a deep depression between them, and a rounded lobe near the base of the 
finger ; finger very large, strongly curved, about as long as the propod with 
slightly projection on the inner side towards the base. 
Female. — The female differs from the male in having the second antenna 
not modified, but only about as stout as the upper. First gnathopod similar 
to that of the male, but slightly more slender, second gnathopod with the carpus 
about half the length of the propod, triangular, propod narrow, oval, palm nearly 
straight, about half the length of the propod, not defined, margin of palm and 
concave margin of finger minutely serrate as in first gnathopod of male. 
