CEciiops. 289 



2. Pandarus Bosch. 



Pandarus Bosch, Leach, Encyc. Brit. Supp., i, 406, t. 20, f. 1-10 

 Diet, des Sc. Nat., xiv, 535. 

 — Desmaresf, Cons, geu Crust., 339. 



Caligus bicolor {var.), Lamarck, An. s. Vert., v, 210. 



Bescripiion. — This species is extremely similar to the 

 preceding. It is smaller, and the whole body is of a pale 

 colour, without any of the l^lack marks which characterise 

 the bicolor. Most probably only a variety. 



Hab. — Taken from the Squalus mmtelus, Linn., at 

 Torcross, Devonshire : Dr. Leach. British Museum. 



Family 4— CECEOPID^. 



Pandariens {pars), M. Edwards, Hist. Nat. Crust., iii, 401 . 

 Caligid-*, race II, L^each, Diet. Sc. Nat., xiv. 

 BopyriDjE {pars), Risso, Hist. Nat. Eur. merid. 

 Cecropin^e, Dana, Proc. Am. Aead. Arts and Se., 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. 



Cecrops, Leach, Eue. Brit. Supp., i, 181G ; Diet. Sc. Nat., xiv, 1819. 

 — Lamarck, Latreille, Besmarest, Nordmami, Bnrmeister, M. Edwards. 



Character. — Elytraform appendage small, and rounded. 

 Pirst 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- 

 turahst in the expedition sent out under the command of 

 La Perouse, discovered a small parasitic animal adhering 



19 



