200 



9. Tellina gemma, Gould, p. 26. pi. 16. f. 5. 

 Hab. San Juau (Green). Mus. Gould. 



10. Strigilla CARNARiA, Linn. 



TeUi7ia {Strigilla) fucata, Gould, p. 26. pi. 16. f. 4 ; Proc. B. S. 

 N. H. 1851, p. 91. 



Strigilla {Tellina) carnaria, B.M. Maz. Cat. p. 39. no. 66. 

 Strigilla miniota, Gould's Platės, MS. 



11. DoNAX FLEXuosus, Gould, p. 21. pi. 15. f. 8. 



Hab. Sta. Barbara (Jeivett). Mus. Gould. 



A comparison of types proves that this is distinct from all varieties 

 of D. punctato-striatus. From the figure alone they were supposed 

 identical ; vide B.M. Maz. Cat. p. 44. uo. 73. 



12. DoNAX Californicus, Conr. 



I>onax obesus, Gould, p. 21. pi. 15. f. 9. (Non D. Californicus, 

 Desh., vide B.M. Maz. Cat. p. 47. uo. 76.— N.B. The D. culmi- 

 natus, no. 72 of the šame catalogue, is proved from types to be the 

 D. rostratus of C. B. Ad.) 



13. Gnathodon mendica, Gould. 



Mactra mendica, Gould, Proc. B. N. H. S. Nov. 1851 ; Mex. &c. 

 p. 20. pi. 15. f. 4. 



Gnathodon trigona, Petit, B.M. Maz. Cat. p. 52. no. 81. 



14. Mactra exoleta, Gray, B.M. Maz. Cat. p. 50. no. 78. 

 Lutraria ventricosa, Gould, p. 17. 



15. Mactra undulata, Gould. 



Lutraria undulata, Gould, p. 18. pi. 15. f. 7. 

 This shell is most closely related to M. elegans, Sow. Tank. Cat. 

 App. ; but I do not venture to unite them, without seeing the types. 



16. Tapęs gracilis, Gould, MS. 



^'T. t. liarva, tenui, transversa, elongato-ovata, incBąuilaterali ; 

 albida, obsolete fusco radiata, et ad aream dorsalem posticam 

 fuseata, concentrice striulata ; extremitatibus rotundatis ; intus 

 candida. 



" Long. -75, alt. '5, lat. "12 poli. 



"Resembles T.florida and T.geographica, but is less angular and 

 less insecįuilateral." — Gould, MS. 



Hab. Sau Pedro ; legit W. P. Blake *. 



17. Tapęs tenerrima, n. s. 



T. t. tenerrima, albido-fusca, obovali, compressa ; marginibus 

 tegualiter excurtatis ; striulis radiantibus ereberrimis, antice 



* Mr. Blake's collections, along with Dr. Webb's, do not appear to have been 

 made duiing the Mexican war. 



