CERITHIDEA.— Plate II. 



The Ceuithibea of the mangroves. Shell cylin- 

 liiidrical, rather solid, cancellated with longitudinal, 

 tuberculated, slightly-arched ribs and spiral ridges ; 

 whorls short, single-banded, the last angular, sligiitly 

 keeled ; aperture rounded, strongly emarginated at 

 the base of the columella, outer lip expanded, pro- 

 duced beneath. 



A. Adams. 



Hab. Borneo and Philippines, at the root of mangroves. 

 More cylindrical in form, with shorter whorls and closei- 



sculpture than C. decoUata, C. obtusa, etc. 



Species 14. (Pig. a, b, Mus. Cuming.) 

 Cekithidea decollata. Cer. testa pyramidald, fused. 



nonnunquam rubi'o fasc'mtd, lonffitudinalite?' costatd, 

 inter costis spiraliter striata; anfractibiis brevibus, 

 apicalibm deciduis, ultimo rotimdo; aperturd rotunda, 

 lahro teuui, expunso. 



The decollated Cekithidea. Shell pyramidal, brown, 

 sometimes banded with red, longitudinally ribbed, 

 spirally striated between the ribs ; whorls short, the 

 upper ones deciduous, the last rounded; aperture 

 round, outer lip thin, expanded. 



LiNN^us (Murex), Syst. Nat. ed. 12. 

 Turbo pulcher, Dilvvyn. 



Hab. ? 



Variety Fig. a is of a light colour with two reddish 



bands on each whorl ; Pig. b is dark-brown, with a lighter 



banil towards the suture, in both the hisi whorl has the 



ribs obsolete. 



