CECROPS. 
289 
2. Pandarus Bosch. 
Pandabus Bosch, Leach, Encyc. Brit. Supp., i, 406, t. 20, f. 1-10 
Diet, des Sc. Nat., xiv, 535. 
— Desmarest, Cons, gen Crust., 339. 
Caligus bicolob, (par.), Lamarck, An. s. Vert., v, 210. 
Description. — This species is extremely similar to the 
preceding. It is smaller, and the whole body is of a pale 
colour, without any of the black marks which characterise 
the bicolor. Most probably only a variety. 
Hcib . — Taken from the Bqualus mustelus , Linn., at 
Torcross, Devonshire ; Dr. Leach. British Museum. 
Eamily 4 — CECBOPIDtE. 
Pandabiens {pars), M. Edwards, Hist. Nat. Crust., iii, 46L 
Caligid^e, bace ii, Leach, Diet. Sc. Nat., xiv. 
Bopybidas {pars), Risso, Hist. Nat. Eur. merid. 
Cecbopinve, Dana, Proc. Am. Acad. Arts and Sc., 1849, 54. 
Character. — Head as in Pandaridse. One single, 
lamellar, elytraform appendage on the dorsal surface of the 
thorax. Oviferous tubes, concealed under a shield-shaped 
plate, and twisted in many convolutions. 
Genus 1 — Cecrops. 
Cecbops, Leach, Enc. Brit. Supp., i, 1816 ; Diet. Sc. Nat., xiv, 1819. 
— Lamarck, Latreille, Desmarest, Nordmann, Burmeister, M. Edwards. 
Character. — Elytraform appendage small, and rounded. 
First three pairs of feet in the female, and all in the male, 
fitted more or less for walking, and armed at the tips with 
short, stout spines. 
Bibliographical History. — Lamartiniere, who was na- 
turalist in the expedition sent out under the command of 
La Perouse, discovered a small parasitic animal adhering 
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