SCAPHANDER. 



Gemis SCAPHANDER, Montfurt. 



Testa spiraliter convoluta, ovato-siihtriijona ; fjn'ra ovata, 

 sub-occulta ; apertura ampla, anfractu penulttmo 

 longior, antice valdh ex}Kmsa, postice coarctata ; 

 labium externum aciitum ; niargo columcUaris reflexa, 

 antice valde arcuata. 



Shell spirally convolute, ovately subtrigonal ; spine 

 partly hidden ; aperture wide, longer than the 

 penultimate whorl, anteriorly much expanded, pos- 

 teriorly narrowed ; outer lip sharp ; columellar 

 margin reflected, strongly arched anteriorly. 



The well known Scaphander lignarius is the type of 

 this genus, which differs from other genera of BuUidce 

 not so much in the form of the shell, although that is 

 pecuhar, as in the character of the animal, which is 

 very distinct. Of the eight species here enumerated, 

 two are American, one Mediterranean, and five British 

 and Scandinavian. 



Species 1. (Mus. Jeffreys.) 



Scaphander zonatus. Sea. testa solidd, ^mllide stra- 

 mined, ovato-mbpyrifonni, spiraliler lineis distantibus 

 excavatia punctatis scidptd ; spird obtusd umbili- 

 caid. 



The banded Scaphander. Shell solid, pale straw- 

 coloured, ovate, subpyriform, spirally sculptured 

 with distant excavated pimctured lines ; sjiire 

 obtuse, umbilicated. 



TuRTON (Bulla). British shells. 



Eab. Zetland. 



Shorter and more ovate than Scap/iander Jignarius, 



not so much so as Sea. Uhrarius. Sculptured with 



punctured hnes and umbilicated at the ape.x. 



The puncto-striated Scapii.\nder. Shell white, solid, 

 ovate, spirally puncto-striated ; spire concealed, 

 aperture large, narrowed posteriorly, elevated 

 above the spire, columellar margin a little 

 arched. 



MlOHyELS. Boston Journal of Natural History, vol, v. 

 p. 43, pi. f. 10. 



Ilab. Casco Bay, Massachusetts. 



Species 3. (Mus. Cuming in Brit.) 

 Scaphander lixeolatus. Sea. testd pared, ariiin^td, 

 fa-iligincd, .</i//nlil'-r miiliit^- il o/dii/u,''- .^triahi ; sjiird 



oh/ 



I : ,,p. 



•pnf:so 



angustd, inj'/a .</)iraia di 

 lari vix arcuato. 



The fine-lined Scaphander. Shell small, narrow, 

 ferruginous, spirally minutely and obliquely 

 striated ; spire rather prominent, narrow, obtuse ; 

 aperture large, posteriorly narrow, dejiressed be- 

 low the spire ; columellar margin very slightly 

 arched. 



CouTHor. Boston Journal of Natiu-al History, vol. ii. 

 p. 179. 



Hab. Massachusetts Bay. 



Species 2. (Mus. Cuming in Brit.) 

 Scaphander puncto-striatus. Sea. testd albd, solidd, 

 ovatd, spiraliter piincto-striatd ; spird ccelatd ; 

 apei-turd magnd, pnstice angvstatd, supra spiram 

 clevata, margine culmnellari subarcuato. \ 



October 



Species 4. (Fig. a, b, Mus. Sowerby.) 



Scaphander lignarius. Sea. testd solidd, pyrifm-mi, 

 versus spiram attenuata, spiraliter striatd, extusfer- 

 rvginen fasciatd ; spird depressd siib-umbilicatd ; 

 aperturd magnd, postice supra spiram elevatd 

 oblique subquadratd ; margine columellarid valde 

 aroiatd. 



The wood Scaphander. Shell solid, pyriform, atte- 

 nuated towards the spire, sjjirally striated, ferru- 

 ginous, banded outside ; spire depressed, subura- 

 bilicated, aperture large, posteriorly elevated above 

 the spire, obliquely quadrate ; columellar margin 

 much arched. 



LiNN.EUS. Systema Naturte. 



Hah. British Coasts. Mediterranean. Scandinavia. 



1870. 



