218 Zoological Society. 



i.^\. Branchipus pisciformis, Schseffer. Antennis inferioribus 

 -n- mmns magnis, compressis, apice hifurcatis ; appendicibus anten- 

 4i niformibus Jiliformibua prcelongis ; fronte prolongato^ bisulco. 



Long. \ poll. 



Syn. Apus pisciformis, Schaeffer, Der Fisch-form. Kiefenfuss, etc. 

 t. b.t 1-11 (1752). 



V Cancer stagnalis, Linnseus, Syst. Nat. edit. 10. 634 (1 758) ; Faun. 

 Suec. ed. 2. 497. No. 2043 (1761); Fabricius, Ent. Syst. ii. 518. 

 No. 11 ; Mantiss. i. 335. No. 10; Miiller, Zool. Dan. Prodrom. 

 2351 ; O. Fabricius, Faun. Greenland. 247. No. 224. 



Branchipus piscifonnis, Schseffer, Element. Entomol. t. 29. t\ 6, 7 

 <1766). 'ya 



^i'Gammarus stagnalisy Fabricius, Syst. En torn. 419. No. 5. »iflB 

 ar Cancer (Gammarellus) stagnalis, Herbst, Krabben und Krebse, 

 iju 121. No. 66. t. 35. f. 8-10 (1796). 



hBranchiopoda stagnalis, Lamarck, Syst. An. s. Vert. 161; Latreille, 

 Hist. Nat. Crust, iv. 319. t. 36, 37 ; Gen. Crust, i. 22 ; Bosc, Man. 

 d'Hist. Nat. Crust, ii. 234. r. ..u^ 



Branchipus stagnalis, Latreille, Enc. Meth. t. 336. f. 14-16 ; 

 Regne Anim. iv. 1 74 ; Leach, Diet. Sc. Nat. xiv. 542 ; Edin. Encyc. 

 vii. 384 ; Desmarest, Cons. gen. Crust. 389 ; Lamarck, Hist. An. s. 

 Vert. V. 133; M. Edwards, Hist. Nat. Crust, iii. 367; Regn. An. 

 ed. Crochart, t. 74. f. 2. 



Branchipus Schcefferi, Fischer de Waldheim, Bull. Soc. Imp. 

 Moscou, vii. (1834) ; Thompson, Zool. Research, fasc. v. t. 3. f. 1-3 

 fl834). 



Branchipus melanu7'us1 Koch, Deutsch. Crust. H. 35. t. 2. 



1357. ~^^ 

 ^^Hab. In vicinitate urbis Ratisbonae ; Schceffer. In vicinitate urbis 

 raris ; M. Edwards. 



^*'This species according to SchsefFer's description is half an incli 

 long, about the thickness of a straw, and semipellucid. The male is 

 generally of a pale red or flesh colour, though sometimes varying be- 

 tween vermilion and orange. The female is of a dull green, with the 

 <)varies generally of a bright blue. The inferior antennae of the male 

 are large organs, somewhat flattened in shape, broad at the base, 

 toothed at about two-thirds of their length on the external edge, and 

 becoming narrower near the extremity, which presents an appearance 

 as if somewhat bifurcated. Those of the female are much shorter, 

 cylindrical, and pointed at the extremity. The two antenniform 

 appendages arising from near the base of these organs in the male 

 are of considerable length, longer than the antennae themselves, and 

 fiUform. The front of the head is prolonged into a prominence 

 which is cleft down the centre and forked. The feet are long, com- 

 posed of three joints, all of which are nearly of equal size, and have 

 their edges beset with numerous short hairs or setae, which when 

 magnified rre finely plumose. The caudal fins are of considerable 

 size, flat and plumose. The male organs are slender and rather long. 



I Ino stagnalis 1 Oken, Lehrb. der Naturg. iii. 399. 

 [Larva aquatica, Linn. Faun. Suec. ed. 1. 358. No. 



