30 BRITISH ENTOMOSTRACA. 
1. Apus oancriformis. Tab. I, figs. 1, 2, 3. 
Monoculus cauda biseta, Linnaeus, Faun. Suec., 344, No. 1181, 1746. 
Apus cancrieormis, Schaffer, Mon. d. Krebsart. Kiefenf., 1. 1-5, 1756. 
— Latreille, Hist. Nat. des Crust., iv, 193, 1. 19-27 ; 
Gen. Crust, et Ins., ii, 15. 
— Savigny, Mem. sur les Anim. s. Verteb., part i, 
p. 63, t. 7, f. 1. 
— Bose, Hist, des Crustac., ii, 243. 
— Leach, Edinb. Encyc., vii, 384, No. 4. 
— Besmarest , Consid. gen. sur les Crust., 360, 
t. 52, *f. 1. 
— Guerin, Iconogr. Regn. Anim. Crust., t. 34, f. 3. 
— M. Edwards, Hist. Nat. des Crust., iii, 360; 
Icon. Regne Anim., edit. Crochart, Crustac., 
t. 75, f. 1. 
— Berthold, Isis, 1830, t. 7, p. 685. 
— Zaddach, de Ap. Cane. Anat. et Hist. Evolut. 
— Koch, Deutsch. Crustac. H. xxxv, t. 4. 
Apus montagui, Leach, Enc. Brit. Supp., i, 405, t. 20, f. 1-3. 
Monoculus apus, LAnnmus , Syst. Nat., edit. lOtli, 1758, i, 635, 
No. 3; edit. 12th, 1058, No. 3. 
— Gmelin , Syst. Nat., edit. 13th, 3006, No. 3. 
— Scojooli, Entomol. Carniol., 413, No. 1138. 
— LesTce, Anfang. der Naturges., 493. 
— Eabricius, Spec. Insector., i. 372, No. 3; Entomol. 
Systemat., ii, 488, Supp. 305. 
— Voschge , Der Naturforsch., x, 60, t. 3, f. 1-10. 
Binoculus cauda biseta, Geoffroy, Hist, abreg. des Ins., ii, 660, 
t. 21, f. 4. 
Binoculus palusteis, Muller , Zool. Dan. Prodrom., No. 2407, 1776. 
Branchipus cancrieormis, Schaeffer, Element. Entomol., t. 29, f. 1-5. 
Limulus palusteis, Muller, Entomostraca, p. 127. 
Limulus cancrieormis, Jjamarch , Hist. An. s. Vert., v, 215. 
Triopes palusteis, Schranlc, Eaun. Boic., p. 251. 
Triops cancrieormis, Oken, Eehrbuch der Naturg., iii, 398. 
Floss-eussigen seewurm, Frisch, Insect, in Deutsch., x, t. 1, f. a-g 
(clttovq). 
Scolopendra aquatic a scutata, Klein, Phil. Trans, for 1737, p. 150, 
t. 1, f. 2 a-d. 
— Brown , Phil. Trans., 1737, p. 153. 
Kieeeneuss, Sulzer, Die Kennzeich. der Insect., 197, t. 24, f. 153. 
Description. — This species is about two inches and a 
half long, and one inch and a half diameter ; of a brownish- 
