CYPHELLA. 



[ 1^4 ] 



CYpms. 



examination; but it appears to consist of 

 a sheath, channelled on its under side for 

 the reception of two equal and very slender 

 bristles, the whole protected by two valve- 

 like sheaths, and contained in a canal 

 traversing the last segment of the abdomen. 



BiBL. Westwood, Introduction, &c. 



CYPHELLA, Fries. — A genus of Amicu- 

 lariui (Hymenomycetous Fungi), forming 



Fig. 155. 



Fig. 156. 



Cypliella Taxi. 



Fig. 155. Entire plant, magnified 10 diameters. 

 Fig. 156. Horizontal section of the wall of the cup, 

 showing the basidiospores, magnified 250 diameters. 



somewhat membranous minute cups, sessile 

 or stalked upon branches of trees or upon 

 mosses; bearing basidiospores on a layer 

 forming a kind of lining to the cup; the 

 spores ultimately separating as a powder in 

 the interior. 



BiBL. Fries,S?/5^.il/2/c, ii.p.201; Leveille, 

 j^nn. des Sc. nat. 2 ser. xvi. 237. 



CYPHIDIUM, Ehr.— A genus of Infu- 

 soria, of the family Arcellina. 



Char. Carapace urceolate, tuberculated ; 

 expansion variable, broad, single and entire. 

 The carapace is combustible, and resembles 

 a small cube, with a short pedicle. 



C. aureolum (PI. 23. fig. 38). Cubical, 

 gibbous, ex])ansion (fig. 38 b) hyaline; aqua- 

 tic ; length 1-570 to 1-432". 

 BiBL. Ehr. Infus. p. 135. 

 CYPHODERIA, Schlumb.— A genus of 

 Infusoria, of the family Arcellina. 



Char. Carapace membranous, resisting, 

 ovoid, elongated in front, recurved and 

 constricted in the form of a neck and marked 

 with oblique rows of projections ; orifice 

 circular, oblique ; expansions very long, 

 filiform, very slender at the end, simple or 

 branched. 



Agrees with Diffiugia enchelys, E. {Tri- 

 nema, Duj.), in the oblique orifice, the 

 oblique rows of markings, and the nature of 

 the expansions, but differs from it in the 

 presence of the anterior neck-like constric- 

 tion. 



C. margaritacea. Carapace yellowish, 

 expansions twice its length ; aquatic ; length 

 1-380 to 1-180". 



Schlumberger remarks that the form of 



the carapace is very variable, that the neck 

 is sometimes quite rudimentary, and that in 

 other individuals the posterior part instead 

 of being broad and rouud, is suddenly nar- 

 rowed into a truncated point. 



The foundation of a genus upon an incon- 

 stant character must be regarded as a very 

 questionable proceeding. Perhaps Cypho- 

 deria is the adult form of Diffiugia enchelys. 

 BiBL. Schlumberger, An7i. des Sc. nat. 

 3 ser. iii. 1845. 



CYPHONAUTES, Ehr.— A genus of 

 Rotatoria, of the family Megalotrochsea. 

 Char. Eyes absent ; no teeth. 

 C. compressus (PI. 34. fig. 19, side view; 

 fig. 20, view from above). Compressed, 

 obtusely triangular, truncate in front, sub- 

 acutely' gibbous at the back; marine; length 

 1-180". 



BiBL. Ehrenb. Infus. p. 395. 

 CYPRIDINA, Edwards.— A genus of 

 Entomostraca, of the order Ostracoda, and 

 family Cypridinadse. 



Char. Eyes two^ stalked; antennae two 

 pairs, both pediform ; feet two pairs ; one 

 pair always enclosed within the shell, long, 

 slender, cylindrical, twisted, divided into 

 numerous short joints, and furnished near 

 the ui)per third of their length with several 

 sharp, stout serrated spines; abdomen ter- 

 minated by a broad lamellar plate, armed 

 with strong claws and hooked spines. 

 Marine. 



C. MacAndrei. 

 C. Brenda. 



BiBL. Baird, Brit. Entom. p. 176; M.- 

 Edwards, Hist. Nat. Crust, iii. 409. 



CYPRIS, Miiller.— A genus of Ento- 

 mostraca, of the order Ostracoda, and family 

 Cypridse. 



Char. Eye single ; inferior antennae with 

 a tuft or pencil of long filaments arising 

 from the last joint but one ; animal swim- 

 ming freely. 



Body enclosed within a bivalve carapace 

 or shell. Superior antennae (PI. 15. fig. 18) 

 seven- jointed, with pretty long, mostly 

 feathery filaments, arising from three or four 

 last joints. Inferior antennae (fig. 19) foot- 

 like, five-jointed, giving off the tuft of 

 usually feathery filaments, the last joint ter- 

 minated by several strong curved claws. 

 Labrum composed of a somewhat hood- 

 shaped piece, projecting between the two 

 inferior antennae ; labium or lower lip elon- 

 gated and triangular. Mandibles (fig. 20) 

 large, pointed at one end, with five teeth at 

 the other, and furnished with a three-jointed 



