S L E N. 



>peci 



(ilus. Brit.) 



Soi.KN viiiiDis. Sol. testa jiai-vd, pallid!- cnnici'i, liiiui, 

 paiilu arcuat't, poUice imbattenuata , miinjiiw mil/rn- 

 tuiulo, antici^ lutiitsculo, inartjine tenniiiali accltvi, 

 oblique truncato, siibrejle.ro ; margine dorindi recto : 

 inargine ventrali convexo. 



The green Solkn. Shell small, pale horny, thin, a 

 little arched, posteriorly subattenuateJ, with 

 margin a little rounded, anteriorly ratlier broader, 

 with terminal margin sloped upwards, obliquely 

 truncated, subreflected ; dorsal margin straight ; 

 ventral margin convex. 



Sav. Journ. Acad. Nat. Sci. Philadelphia. 



Hdb. North America. 



Species 2G. (Mus. Brit.) 



SoLEN Pfeifferi. Sol. tcstd brevi, recta, purpureo fas- 

 ciatd, epidermide fusco, rtiyato indiita ; margine 

 dorsali rccli'dsculo ; areA amjitstissiviA ; margine 

 ventrali patilu ventricnsd ; margine postico ahrupte 

 truncato ; margine antico conve.iiiisculo, obliipio. 



Pfeiffer's Solen. Shell short, straiglit, banded with 

 purple, covered with a brown wrinkled epidermis ; 

 dorsal margin rather straight ; area very narrow ; 

 ventral margin a little ventricose ; posterior 

 margin abrujitly truncated ; anterior margin 

 rather convex, oblique. 



DuNKER. Proc. Zool. Soc, 18G1. 



Hab. Bay of Caraccas. 



Species 27. (Mus. Brit.) 



SoLEN TiMOKENSis. Sol. tcstd rectd, latd, lincis Jo 

 ciisque jmrpurcis jiallidis picld; ant id obliq 

 truncatd, ad marginem ventralem acuminata; ar 

 dorsali angmlissimd; area mediand latd. 



The Timor Solen. Sliell straight, broad, anterior! 

 painted with pale purple lines and bands ; ol 



liqiU'Iy truncated in front, acuminated at the 

 ventral margin ; dorsal area very narrow, middle 

 area broad. 



DuNKER. Proc. Zool. Soc, 18G1. 



JIah. Timor. 



Differing from Solen tnincatus in the great obliquity 

 of the anterior terminal margin and its acuminated 

 ventral corner. 



Species 28. (Mus. Brit.) 



Solen mach.\. SuL tc.-<td laagnd, subcompressd, rer- 

 tiiinculd, ad terminos acclivi, epidermide nitenti 

 fusco-subviridi uuhitd ; umhonibus retrorsis ; mar- 

 gine antico elevato, convexo, acclivi, vershs um- 

 boiics iiirliiKiln ; margine postico paulu acclivi, 

 subobliqui truncato. 



The HAi'FV Solkn. Shell large, rather compressed, 

 rather straight, sloped at the ends, covered with a 

 shining greenish-brown epidermis ; umboes bent 

 backwards ; anterior margin, raised, convex, 

 sloped upwards, leaning towards the umboes; 

 posterior margin raised, rather obliquely trun- 

 cated. 



Oken. ? MS. Mus. Brit. 



Hab. ? Specimens in the Cumingian collection. 



The shell is not straight as Solen siliqua, nor curved 

 as Solen ensis, but nearly straight except at the ends. 

 which are a little turned up. 



Species 29. (Mus. Brit.) 



Solen 



Fonesii. Sol. tcstd brevi, rectiitsculd, corneo- 

 subviridi ; margiuibus dorsali ventralique vix 

 arcuatis ; margine postico obtuse truncato, pauld 

 convexo ; margine antico acuta, obliqui' truncato. 

 FoNE.s's Solen. Shell short, rather straight, greenish- 

 horny ; dorsal and ventral margins scarcely 



1874. 



