706 



7. Venus multicostata (pi. clii. f. \{!i),Sowerby, Pro. Zool. 

 Soc. 1835, p. 22. 



V, " testa elliptica, ventricosa, crassa, concentrice multicostata ; 

 costis reflexis, crassis, autice midulatis, medio crenatis, postice 

 alteriiatim interruptis, subirregularibus, subundulatis ; margine 

 dorsali rectiusculo, ventrali rotundato; impressione cordiformi 

 antice distincta." 



Of the same form as V. Listen, but Math ribs very thick and 

 reflected at the anterior, undulated, in the middle crenulated, and 

 at the posterior rather irregular, alternately interrupted, and very 

 slightly undulated. 



Panama Bay ; in coarse sand at low water. Cmnhig. 



8. Venus resticulata (pi. cliii. f. 23), Sowerhy,jun. 



V, testa ponderosa, ventricosa, rotundata, alba, prope umbones 

 subradiatim maculatn, sulcis radiantibus et costis concentricis no- 

 duliferis validis postice sublaminatis immerosis decussata; mar- 

 gine dorsali subarcuato, plicato; lunula magna, laminata; mar- 

 gine ventrali crenulato. 



This shell is much rounder in form than V. multicostata, and 

 the ribs are more universally creiuilated. Both the species differ 

 from V. puerpera in the tliickness and closeness of the ribs. 



East Indian Islands. 



9. Venus laqueata (pi. cliii. f. 15), Sowerhy,jun. 



V. testa ovali-subquadrata, ventricosa, costellis radiantibus 

 duplicatis et costellis concentricis distantibus erectis laminatis 

 latis acute laqueatis decussata, alba, seu pallidc fnlva, obscure 

 triradiata; margine dorsali rectiusculo, valvse dextrse laminato, 

 alteram superante, valvse sinistrEe subplanulato ; lunula magna, 

 laminata ; sutura circumscripta. 



Oblong, rather truncated and very ventricose, with the concen- 

 tric ribs deep, laminated and beautifully scalloped. Those of V. 

 CJietmiitzii present a very miniatiu'c likeness of them. 



Swan Eiver, Australia. Juices. 



10. Venus reticulata (pi. cliii. f. 11, 12, 13), Linn., Mus. 

 Ulr. p. 503. V. corbis, Lamarck, Anim. sans vert. sp. 4. 

 Chemn. f. 382, 383. 



V. testa oblique ovali-suboblonga, alba vel fulva, fusco vel rubro 

 variegatti, costellis radiantibus rotundatis et costellis concentricis 



