Rev. L. Guilding on the Zoologj/ of the Caribcean Islands. 



NOTE. 



Although a Notice on this subject has appeared in another Journal, since 

 the time at which the above Note was handed to the Editor, he publishes 

 it entire, injustice to Mr. Sowerby, by whom the interesting facts contained 

 in it were first publicly mentioned; injustice also to the readers of the Zoo- 

 logical Journal, to whom it will convey fuller information than has yet beea 

 given. — Ed. 



Art. LXI. Observations on the Zoologi/ of the Caribcean 

 Islands, By the Rev, Lansdown Guilding, B.A,^ 



F.L,8fG,S,,M,W,S.,8^c, 



[Continued from p. 408.] 

 MOLLUSCA CarIB^ANA. 



Fam. Helicid^. Guild. 

 Genus. Stenopus.* Id. 



Char. Gen. 

 Animal. Corpus corrugatum, elongatum, raro retractum^ 

 motu serpentino difficillime repens. Pallium amplum, foramine 

 communi magno perforatum. Caput declive : os antice, inter 

 tentacula inferiora : labia plicata : lingua emissilis. Tentacula 

 duo superiora elongata, capitulo oculigero. Penis cervicis elon- 

 gati latere dextro. Discus gressorius\ distinctus, linearis, mus- 

 culis transversis, pedis lateribus multo angustior, veluti in genere 

 Onchidio, (unde nomen). Cauda tentaculata, tentaculo sub- 

 retractilij glanduld ad basin posita. 



Testa heliciformis, umbilicata, diaphana, apertur^ transversa. 



1. Stenopus cruentatus, jj -7^/ 



St. flavo-sanguineus, disco gressorio caudaque flavidis ; abdo- 

 mine sanguineo maculato ; pallio rubro, papilloso, albo punctulato 



* Nomen a Sroof angustus, et it^s pes. 



+ The pedal disk is usually flat and simple: in one marine genus it is 

 divided by a medial line, and the muscles of the two sides act with an undu- ^, 



lating motion, alternately and independeutly. 



