LITTOEINA.— Plate XVI, 



rally ribbed throughout; bluish-white; colmuelki 

 excavated, interior of the aperture violet-purple. 

 PuiLlPPi, Pro. Zool. Soc. 1845, p. 139. 

 Hah. Galapagos Islands (found on high exposed rocks) ; 

 Cuming. 

 A small, open, bluish-white shell, spirally ribbed, violet- 

 purple in the interior. 



Species 90. (Fig. a, h, Mus. Cuming.) 

 LiTTORiNA TABALis. Litt. testd globosd, tenui, spird 

 brevissimd, minutd, anfractibus angudu, ultimo ex- 

 pamo ; castaneo-rufd, lineis obscure reticulata; aper- 

 iurd ampld, columella excavatd. 

 The little bean Littorina. Shell globose, thin, spire 

 very short, minute, whorls narrow, the last expanded ; 

 chestnut-red, obscurely reticulated with lines ; aper- 

 ture large, columella excavated. 

 Turbo fabalis. Zoological Journal, vol. ii. p. 366. pi. 13. 

 f. 10. 

 Littoritui Beanii, Macgillivrav. 



Littorina fabalis, Thorpe. 

 Hub. Northern shores of England. 



It is somewhat doubtful whether this little species is 

 uot an extreme variety of L. littoralis. 



Species 91. (Mus. Cuming.) 



Littorina saxatilis. Litt. testa ovato-turbinaid, spird 

 acuta, anfractibns rotundatis, spiraliter tenuissinw li- 

 neari-sulcatis ; olivaceo-fuscd, nitente ; aperturd cir- 

 eulari, columella tenue callosd. 



The rock-inhabiting Littorina. Shell ovately turbi- 

 nated, spire sharp, whorls rounded, spirally very 

 finely linearly grooved ; olive-brown, shining ; aper- 

 ture circular, columella thinly callous. 



Johnston, Berwick Club, vol. i. p. 268. • 



Littorina neglecta. Bean. 



Hab. Northern shores of England. 



This also is referred by some authors to a typical Bri- 

 tish species, L. rudis. 



