CONULARIA. 119 



former. De Blainville places in this genus the genera Thalamulus, 

 Achelois and Antimomus, Montf. two of which are figured, 

 Knor. Sup. Fab. iv. fig. 1. 1. 8. 9. Conilites Pyramidatus, fig. 470. 



CONILITHES. Sw. A sub-genus of Coronaxis, Sw. (Coni, with 

 coronated whorls) thus described, " Conic; spire considerably 

 elevated ; the aperture linear, C. antediluvianus, Sow. Gen. f. 1." 



CONOHELIX. Sw. (C onus and Helix.) The generic name given 

 to those species of Mitra which are conical in form. Fig. 432, 

 C. marmorata. 



CONOPLiEA. Say. Order, Sessile Cirripedes, Lam. A genus 

 composed of Balani, attached to the stems of Gorgonia, having 

 their bases elongated. Ex. fig. 27, Balanus Galeatus. 



CONORBIS. Sw. A genus composed of species of Conus, such 

 as C. dormitor, (Sowerby, gen. fig. 8) which have elevated spires 

 and the upper part of the outer lip deeply sinuated. Mr. Swain- 

 son considers these fossil species as analogous to the Pleurotomse. 

 Sw. Lard. Cyclop. Malac. p. 312. 



CONOYULUM. A genus proposed by Lamarck, to include the 

 small, conical species of Auricula, which have the outer lip simple. 

 This genus was afterwards abandoned by the author. Ex. fig. 

 298, Auricula coniformis. 



CONTIGUOUS. (Contingo, to touch.) A term applied to the 

 whorls of spiral shells when they rest upon, or touch each other. 

 This is the case in a great majority of instances. When, on the 

 contrary, there is a space between the whorls, they are said to be 

 non-contiguous, detached, or free. Examples of non-contiguous 

 whorls are to be seen in Scalaria, fig. 351 (in this case, the distance 

 between the whorls is small), and in Crioceratites, fig. 482. A 

 "Columella contiguous to the axis" is when in the centre of the 

 shell and takes the place of the imaginary line which forms its 

 axis. 



CONTINUOUS. Carried on without interruption, as the siphon in 

 Spirula, the varices in Ranella, fig. 394, which, occurring in a 

 corresponding part of each whorl, form a continuous ridge. 



CONULARIA. Miller. A genus of Orthocerata, described as coni- 

 cal,, straight, or nearly so, divided into chambers by imperforate 



