SOLECURTUS. 



Plate IV. 



Species 18, (Mus. Sowerby.) 



SoLECDRTus CENTRALIS. Sol. testd oblonffd, inflatd, 

 alhidd, epidermide olivaceo-fusco indutd ; latere 

 antico elongato, ventricoso, versus terminum rugato, 

 inargine terminali infrd sursitm acclivi, supi-a siib- 

 cuneato; margine dorsali elevato, subarouato; latere 

 antico breviori, angusto, oblique angulato, ad ter- 

 minum truncato ; margine ventrali medio subcon- 

 tracto. 



The central Solecurtus. Shell oblong, inflated) 

 whitisli, covered with an olive-brown epidermis ; 

 anterior side elongated, ventricose, wrinkled to- 

 wards the end, terminal margin below sloped 

 upwards, above cuneated ; dorsal margin elevated, 

 a little arched ; anterior side rather shorter, narrow 

 obliquely angular, truncated at the end ; ventral 

 margin a little contracted. 



Conrad ? 



Hab. Georgia. 



This, like several other approximate species, has the 

 greater length at the anterior side. 



Fig. 19. (Mus. Sowerby.) j 



Solecurtus antiquatus. Species 13, Plate III. It , 



was not till after the plates were printed that the j 



identity of this shell was discovered. It is a very j 

 different variety. 



Species 20. (Mus. Sowerby.) 



Solecurtus sejhnudus. Sol. testa oblongd, inflatd, 

 versus umbones mediumque oblique, distanter sul- 

 catd; utrinque truncaid, late hianti, earned, fasciis 

 albidis duabus medio radiatd ; latere antico brevi, 

 cuneato, subquadrato ; latere postico producto, mar- 

 gine tenninali oblique truncato ; margine dorsali 

 recti ; margine ventrali medio excavato. 



The uale-baue Solecurtus. Shell oblong, inflated, 

 obliquely and distantly grooved towards the um- 

 bones and centre, truncated at each end, broadly 

 gaping, flesh-coloured, rayed with two whitish 

 bands in the middle ; anterior side short, cuneated, 

 nearly square ; posterior side produced, terminal 

 margin obhijuely truncated; dorsal margin 

 straight ; ventral margin excavated in the middle. 



SOWEKUY. 



I/ab. '! 



This sliell has a peculiar contraction in the middle, 

 and the oblique diverging grooves only extend from 

 the umbonal region to near the middle, then dying out 

 so as to leave the rest of the surface smooth and bare. 

 It has a general resemblance to Solecurtus strigilatus, 

 from which it is evidently distinct. 



Species 21. (Fig. a, b.) 



Solecurtus Cakib.eus. Sol. testd ohkngd, albidd, 

 retiusculd; latere antico quam posticmn longiori, 

 rotunda, mperne obscure cuneato; latere postico 

 obtuse angidato, angustiusculo, margine terminali 

 late truncato ; margine dorsali antice recto, postice 

 excavato, margine ventrali recto. 



The caribean Solecurtus. Shell oblong, whitish, 

 rather straight ; anterior side larger than the 

 posterior, rounded, obscurely cuneated above; 

 posterior side obtusely angular, rather narrow, 

 terminal margin broadly truncated, dorsal margin 

 anteriorly straight, posteriorly excavated ; ventral 

 margin straight. 



Lamarck. Anim. s. Vert. Solen, Sp. 13. 



Solen Gnineensis, Delwyn. 



Hab. America. 



The difference in form between this and Species 18, 



will be apparent to the eye. 



August, 1874. 



