236 



REPORT — 1856. 



No. No. 



6. Natica ?narocc«wer, Chemn.(Koch)= 35. 



N. Chemnitzii, Pfr. 



7. Nerita midtijugis, Mke. = IV. scabri- 



costa, Lara., teste Mke. postea. 



8. Turbo jiuctuosus, Wood. 



9. Solarium granulatum, [Mke. quasi] 36. 



Lara. 37. 



10. Cerithium ocellatum, [Mke. quasi] 38. 



Brug.= C. stercusmuscarum, Val. 



11. Buccinum sanguinolentum, Duel. = 39. 



Pollia hcemastoma, Gray. 40. 



12. gemmulatum, Rve. non Lam. 



nee Kien.= Pisania gemmata. 41. 



13. gilvum, Mke. Appears to be an 42. 



Anachis, possibly coronata. 43. 



14. Terebra fulgurata, Phil. 44. 



15. Purpura hcemastoma, [Mke. quasi] 



Lam.=P. biserialis, Blainv. var. 45. 



16. bicostalis, Rve.=P. biserialis, 



Blainv. 46. 



17. atromarginata, "Blainv., Desh. 47. 



= P. cancellata, Kien." (New 

 Hebrides.) 



18. Columbella strombiformis, Lam. 48. 



19. ■ major, Sow. 



20. harpceformis, Sow. 49. 



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



Brod. 50. 



22. Ficula decussata=Pyrida ventricosa, 



Sow. 51. 



23. Conus achatinus, [Mke. quasi] Brug. 52. 



= C. purpureus or regalitatis. 



24. Oliva tergina, Duel. 53. 



25. zonalis, Lam. 54. 



26. Erato columbella, Mke. 



27. Cyprcea arabicula, Lam. 55. 



28. Soiverbyi, " Rve. = C. zonata, 56. 



Gray, not Chemn." 



29. sanguine a, Gray. 57- 



30. Solandri, Gray. 



31. pustulata, Lam. 



32. Crepidula costata, [Mke. quasi] Sow. 58. 



= C. aculeata, var. 



33. hepatica, [Mke. quasi] Desh. 



= C.incurva, Brod., not C. hepatica, 59. 

 C. B. Ad. 



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



Calyptrcea dentata, Mke. "=C. ru- 

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

 = C extinctorium, Sow. non Lam." 

 = Crucibulum imbricatum, var. 



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

 imbricata, Sow. 



— Lamarckii, Desh. (Australia). 



Hipponyx australis, [Mke. quasi] 



Lam.=H. serratus. 

 Fissurella pica, Sow. 

 chlorotrema, Mke.=F. rugosa, 



Sow. 



humilis, Mke.=F. rugosa, var. 



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



Acmcea mitella, Mke. 



Pecten adspersus, Sow. (Tumbez, 



Peru.) 

 AviadaAtlantica, [Mke. quasi] Lam. 



=A. sterna, Gld. 

 Area ? ovata, Rve. 

 Mytilus — M. spatula, Mke. in Zeit. 



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



diola capax, jun. 

 Modiola=M. semilcevis, Mke. in Zeit. 



f. Mai. 1848, p. 5. 

 Cardita qffinis, [Mke. quasi] Sow.= 



C. Californica. 



Cardium muricatum, [Mke. quasi] 



Linn. ?=C. radula, Brod. & Sow. 



procerum, Sow. 



Donax 1 compressus, [Mke. quasi] 



Lam. ?=D. assimilis, Hani. 

 Tellina cicercula, Phil. 

 Cytherea corbicula [Mke. quasi] Lam. 



=:Trigona radiata. 



argentina, Sow. 



semifulva, Mke. ?= Trigona 



radiata, var. 

 chicncea,*Mke.=Dionesqualida i 



Sow. + biradiata, Gray. ? -J- D. eZe- 



#ans, Koch. 

 Femw cancellata, [Mke. quasi] Linn. 



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



Maz. Cat. p. 80. no. 113. 

 Corbula lustulata, Rve. One rubbed 



valve. 



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

 not belong to the fauna:— Nos. 3, 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 



