DINEMOURA. 
285 
1. Dinemoura alata. Tab. XXXIII, figs. 6, 7. 
Pandarus alatus, M. Edwards, Ann. Sc. Nat., xxviii, t. 8. 
— Johnston, Loudon’s Mag. Nat. Hist., viii, 203, 
f. 22 a, h. 
Dinematura alata, Burmeister, Nov. Act. Acad. Nat. Cur., xviii, 331 . 
Dinemoura alata, M. Edwards, Hist. Nat. Crust., iii, 464. 
Description . — Body oblong, about half an inch in length 
and two tenths of an inch broad. 
Cephalo-thorax squarely rounded ; slightly notched in 
front. Dorsal plates, or elytra, convex and smooth, about 
the same breadth behind as in front, and occupying about 
a third of the length of the whole body. Their posterior 
margin is cut even, but obliquely. They are of a ches-* 
nut colour, very faintly scored, and marked with pale, 
scattered dots. The under surface of the body is of a 
dead white. 
The last segment of the thorax is nearly of the same 
length as the elytra, and has at its extremity a small, 
horny tooth. 
The caudal appendages of abdomen scarcely project be- 
yond the last segment of the thorax. They are broad and 
somewhat square-shaped in the male ; longer and narrow 
in the female, and have at their extremities several short 
setae. 
This species was taken by Dr. Johnston from a Beau- 
maris shark, in Berwick Bay, in 1834 ; and he observes, 
that it “ appears parasitical on several species of fish. It 
generally attaches itself to the sides of the branchial covers, 
adhering tenaciously, by thrusting the claws of the first 
and third pairs of feet* through the skin/’ 
Hab . — Beaumaris shark, Berwick Bay; Dr. Johnston. 
* Foot-jaws. 
