Cuttton.—On some Subterranean Crustacea. 177 
AMPHIPODA. 
Genus Crangonyx. 
(Brit. Mus. Cat. Amphip. Crust., p. 178). 
Crangonya compactus, sp. nov. Plate X., figs. 13 to 19. 
Eyes not visible. Upper antenne rather more than one-fourth the 
length of the body; peduncle with the first joint longer than the second, 
and the second longer than the third; flagellum rather longer than the 
peduncle ; secondary appendage small and slender, consisting of one long 
and one short joint. Peduncle of lower antenna longer than that of the 
upper, the “‘ olfactory denticle” large and prominent, last two joints of the 
peduncle equal in length, with their posterior edges fringed with several 
tufts of sete ; flagellum short, rather more than half the length of the last 
joint of the peduncle. Appendage of the mandible with three joints 
increasing in length distally, the last bearing several long sete. Gnatho- 
poda subequal, propodos only slightly broader than the carpus, palm about 
one half the length of its inferior edge, defined by a stout spine on each 
side. Pereiopoda subequal. Pleon having the inferior edge of the three 
anterior segments furnished with five or six small sete. Three posterior 
pairs of pleopoda short and broad; first two biramous, third unibranched, 
the branch longer than the peduncle and composed of one rather long joint 
followed by a very small one. Telson half as long as the posterior pair of 
pleopoda, narrowing slightly towards the extremity which bears two short 
stout spines, Colour—transparent. 
Length, -8 of an inch. 
Hab. Pump at Eyreton. 
This species is readily recognized by the short stumpy appearance of the 
three posterior pairs of pleopoda. The secondary appendage on the upper 
antenna is small and very easily overlooked. On the flagellum of the upper 
antenna there are some “ sensory sete.” These are small and cylindrical, 
Hot quite as long as the joint they are on, and they are divided by a trans- 
verse septum about the middle. On the basal portion of the flagellum 
there are two of these sete on each joint, but towards the distal end there 
1 only one on each joint. 
This species is rather rare. 
Genus Calliope. 
(Brit. Mus., Cat. Amphip. Crust., p. 148.) 
Calliope subterranea, sp.nov. Plate IX., figs. 1 to 10. 
Female.—Cephalon without a rostrum. Eyes absent. Upper antenna 
longer than the lower, about two-thirds the length of the body. The 
Jomts of the peduncle decreasing in length and breadth distally. There 
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