236 



REPORT — 1856. 



No. 



6. Natica7naroccana,CheTian.(Koch)= 



N. Chemnitzii, Pfr. 



7. Nerita multijugis, Mke.=iV. scalri- 



costa, Lam., teste Mke. postea. 



8. Turbo fluctuostcs, AVood. 



9. Solarium granulatum, [Mke. quasi] 



Lara. 

 10. Cerithimn ocellatum, [Mke. quasi] 



Brug.=:C. stercusmuscarum, VaL 

 IL Buccinum sanguinolentum, Duel. =: 



Pollia hamastoma. Gray. 



12. gemmulatum, Rve. non Lam. 



nee Kien. =PisaMia gemmata. 



13. gilvwm, Mke. Appears to be an 



Anachis, possibly coronata. 



14. Terebra fulgurata, Phil. 

 16. Purpura hcemastoma, [Mke. quasi] 



Lam.=P. biserialis, Blainv. var. 



16. hicostaUs, Rve.=P. biserialis, 



Blainv. 



17. atromarginata, "Blainv., Desh. 



= P. cancellata, Kien." (New 

 Hebrides.) 



18. Columbella strombiformis, Lam. 



19. ' major, Sow. 



20. harpmformis. Sow. 



21. Murex brassica, Lam.=M. ducalis, 



Brod. 



22. Ficula decussata^Pyrula ventricosa, 



Sow. 



23. Conus achatinus, [Mke. quasi] Brug. 



=:C. purptireus or regalitatis. 



24. Oliva tergina. Duel. 



25. • zonalis. Lam. 



26. Erato columbella, Mke. 

 27- Cyprcea arabicula. Lam. 



28. Sowerbyi, " Rve. = C. zonata, 



Gray, not Chemn." 



29. sanguinea. Gray. 



30. Solandri, Gray. 



31. pustulata, Lam. 



32. Crepidula costata, [Mke. quasi] Sow. 



= C. aculeata, var. 



33. hepatica, [Mke. quasi] Desh. 



= C.iMCMrra,Brod.,not C. hepatica, 

 C. B. Ad. 



34. uncata, Mke.=C. adunca. Sow. 



Of the 45 species here quoted from other authors, the following 15 do 

 not belong to the fauna:— Nos. S, 4, 9, 10, 15, 17, 23, 32, 37, 38, 45, 50, 

 52, 54, 58. It is fair to suppose, either that the writer has erred in his 

 diagnoses, or that shells have been imported. In most cases, as very similar 

 species really are found at Mazatlan, it is natural to adopt the former 

 alternative. In other cases, as in nos. 20 and 44, the species inhabit the 

 coast, but their presence at Mazatlan wants the confirmation of the Reigen 

 collection. Of the shells intended by nos. 17, 28, 37, 46, 48, & 59, no 

 information can be given. Of the entire 59 species, accepting the altered 

 nomenclature, which would reduce the number to 55, 40 are certainly, and 



No. 



35. Calyptrcea dentafa, Mke. "=:C. ric- 

 gosa. Less, in Guer. Mag. non Desh. 

 = C. extinctorium. Sow. non Lam." 

 = Crucibulum imbricatum, var, 

 B. M. Maz. Cat. p. 287. no. 343. 



36. hnbricata. Sow. 



37. Lamarckii, Desh. (Australia). 



38. Hipponyx australis, [Mke. quasi] 

 Lam.=H. serratus. 



39. Fissurella pica. Sow. 



40. chlorotrema, Mke.^F. rugosa, 



Sow. 



41. humilis, Mke.=F. rugosa, var. 



42. gemmata, Mke. ?=F. alba, jun. 



43. Acmtea mitella, Mke. 



44. Pecten adspersus, Sow. (Tumbez, 

 Peru.) 



45. AviculaAtlantica, [Mke. quasi] Lam. 

 =zA. sterna, Gld. 



46. Area ? ovata, Rve. 



47. Mytilus=.M. spatula, Mke. in Zeit, 

 f. Mai. 1848, p. 2. Possibly = Mo- 

 diola capax, jun. 



48. Modiola=^M. semiltevis, Mke. in Zeit. 

 f. Mai. 1848, p. 5. 



49. Cardita affinis, [Mke. quasi] Sow.= 

 C. Californica. 



50. Cardium muricatum, [Mke. quasi] 

 Linn. ?=:C. radida, Brod. & Sow, 



51. procerum. Sow. 



52. Donax ? compressus, [Mke. quasi] 

 Lam. ?=-D. assimilis, Hani. 



53. Tellina cicercula, Phil. 



54 . Cytkerea corbicula [Mke. quasi] Lam. 

 =^Trigona radiata. 



55. argentina. Sow. 



56. semifulva, Mke. ?= Trigona 



radiata, var. 



57. ckion(Ba,Mke.=Dionesqualida, 



Sow. + biradiata. Gray. ? + D. ele- 

 gants, Koch. 



58. Venus cancellata, [Mke. quasi] Linn. 

 '?=Chione amathusia : but v. B. M, 

 Maz. Gat. p. 80.no. 113. 



59. CorbidalustulatajKve. One rubbed 

 valve. 



