110 ciECi;. 



difference between this genus and Balaistus consists principally 

 in the horizontal position of the operculum, and general flatness 

 of the shell. C. steUntus. PL i. fig. 18. 



CIBICIDES. Montf. A genus of microscopic Eoraminifera. 



CIDAEIS. Swains. 1840. A genus composed of Tukbo Sma- 



- ragdus, petholatus, and other similar species. The word Cidaris 

 is, however, already in use for a genus of Echinae. 



CIDAEOLLUS. Montf. A genus of microscopic Foraminifera. 



CILIATED. (Ciliae, hairs.) Having minute hairs as in Orbicula, 

 Lingula, &c. and the jointed feelers of the Cirripedes. 



CIMBEE. Montf. 1810. jS'ayicella. Lamarck, 1822. " Cimber" 

 claims priority. 



CINEEAS. Leach. (Cinereus, ash-coloured.) Included by Da- 

 rius with Otion, under the name Conchoderma. Olfus, 1814. 

 Order, Pedunculated Cirripedes, Lam. — Descr. Animal with a 

 quadrilateral body, supported on a fleshy peduncle, with an 

 opening in front of the upper part for the passage of a bunch of 

 ciliated tentacula. Immediately above this aperture is a pair of 

 small elongated valves, placed in a nearly horizontal position ; 

 at the lower part is another tripartite pair placed perpendicu- 

 larly, one on each side, and a narrow, angulated, keel-shaped 

 piece placed at the back.— Obs. The nearest approach to this 

 genus is Otion. (C. Yittatus.) Pound upon substances float- 

 ing in the sea. PI. ii. fig. 42. 



CINEEEOUS. {Cinereus.) Ash-coloured. 



CINCULA. Pleming, 1828. Eissoa, Preminville, 1814. 



CIONELLA. Jeflreys. Zua, Leach, MS. Gray, 1840. Fam. 

 Colimacea, Lam. — Descr. Oblong or elongated ; last whorl 

 large ; apex rather acute ; columella, sub-interrupted ; aperture 

 canaliculated, sub-efiuse at the base ; margins very unequal ; no 

 umbilicus. Bultk^us octonus, lubricus, acicula, &c. Auct. 

 C. lubrica. PI. siv. fig. 285. 



CIECE, Schum. Distinguished from CytherjEA by the total 

 want of Pallaeal sinus, and by a peculiar flatness near the um- 

 bones. The monograph in Thesaurus Conchyliorum, by the 



