138 BRITISH EiNTOMOSTRACA. 



Legion II— LOPHYROPODA.* 



LoPHTROPA, LatreiUe, Cuv. Regne An., iv, 150. 



— Say, Joum. Acad. Nat. Sc. Philad. i. 



LoPHYROPA and Ostrapoda, Desmaresf, Cons. gen. Crust. 

 LoPHTKOPODA, Leach, Diet. Sc. Nat., xiv, 524. 



— /. E. Gray, Sjnops. Brit. Mus., 18i2. 



— Bunnehter, Beitr. zur Naturg. der Raukeufussen. 

 Braxchiopodes fra^tges {pars), Lamarck, Hist. An. s. Vert., v. 



Character. — Mouth fm-nished with organs fitted for mas- 

 tication. Branchiae few, attached to the organs of month. 

 Body ha^ing an envelope, either in form of a buckler, 

 inclosing head and thorax, or in shape of a bivalve shell, 

 inclosing the whole animal. Feet few in number, not 

 exceeding five pairs. Aiticulations more or less cjhndri- 

 cal, and ser^ing the animal for the purpose of locomotion. 

 One eye. Two paii's of antennae ; one pair of which are 

 used by the animal as organs of motion. 



Order I— OSTRACODA.f 



OsTRACODA, LatreiUe, Hist. Nat. Crust., ISOl ; Cuv. Regne Anim., 

 iv, 151 . 

 — Baird, Mag. Zool. and Bot., i; Trans. Berw. Nat. Club, ii. 



OsTRACiss ou BiTESTACES, Biimeril, Zoologie Analytique, 1S06. 

 Ostrapoda, Straus, Mem. Mus. d'Hist. Nat., vii. 

 Ctproides ou Ostracodes, M. Edicards, Hist. Nat. Crust., iii, 393. 

 Crophtropoda b., Burmeister, Organization of TrUobites (Ray Soc. 



edit.), 34. 

 Ctpridacea vel Ostracoda, Dana, Proc. ximer. Acad. Sc, 1849. 



Cliaracier. — Body inclosed entirely in a covering of 

 two valves, resembling a bivalve shell. Posterior jaws 

 branchiferous. No external ovary. Feet two and three 

 pairs, adapted for progressive motion. 



This order contains three families, Cypridae, C\1;heridae, 

 and Cypridinadse. 



* From \o(pvpoc, having stiff hairs ; and ttovs, foot . 

 f From oarpaKov, a slicU. 



