94 CAPRELLA. 



13 of the Concliological Illustrations. The greater part of these 

 new species were brought to this country by Mr. Cuming. 



CANCELLATED. (From Cancellatus, cross-barred) Applied gene- 

 rally to any shells which are marked by ridges crossing each other 

 as Cancellaria, fig. 385. 



CANCILLA. Sw. A sub-genus of Mitrae, described as having " the 

 whorls crossed by transverse linear ribs ; inner canal wanting, 

 plates very oblique ; form slender ; outer lip thin." Ex. M. 

 Isabella, M. sulcata. 



CANCRIS. Montf. Crepidulina, Bl. A genus of microscopic 

 Foraminifera. 



CANOPUS. Montf. A genus of microscopic Foraminifera. 



CANTHAPLEURA. Guild. A genus composed of those species 

 . of Chiton, which have the mantle rough, with moveable spines, 

 prickles, or hairs. Ex. C. spinosus, fig. 227. 



CANTHARIDUS. Montf. Tro'chus Iris, Auct. and analogous 

 species. Elenchus, Humph. 



CANTHARUS. Montf. A genus of microscopic Foraminifera. 



CANTHIDOMUS. Sw. A sub-genus of Melanopsis, thus described : 

 "spire generally short; whorls coronated with spines, or 

 marked with longitudinal ribs; base obtuse. C. coatata, Sow. Gen. 

 f. 3." Melanopsis costata, plates, fig. 315. 



CANTHORB1S. Sw. A sub-genus of the sub-family Trochime, Sw. 

 Described as being " nearly disc-shaped : spire but slightly 

 raised ; the margin of the body-whorl flattened, and serrated 

 with flat spines ; inner lip united to the outer; pillar and aper- 

 ture as in the last. (Tubicanthus) C. imperialis. Mart. 173. f. 

 1 714." This sub-genus appears to include those species of which 

 De Montfort's genera Imperator and Calcar are formed. 



CANTH ROPES. Montf. Described as resembling a Nautilus, 

 with the whorls increasing so gradually, that the dorsal edge 

 of the aperture advances but little beyond the last whorl. 

 This genus is not mentioned by Blainville or Lamarck. 



CAPITULUM. Klein. Pollicipes Mitellus, Lam. fig. 37*. 



CAPRELLA. ? Plekocheilus, Guild. Auricula Caprella, 



Lam. 



