Columbella fuscata, Sbi/. 



Gulf of California. 



Columbella haemastoma, Sb;^. 



Gulf of California. 



Columbella major, Shi/. 



Gulf of California. 



Nassa luteostoma, B. 8^ Sby. 



Panama. 



Nassa Panamensis, C. B. Ad. 



Panama. 



Nassa scabriuscula, Powis. 



Panama. 



Nassa tegula, Rve. 



Panama — Gulf of California. 



Nassa versicolor, C. B. Ad. 



Panama. 



Anachis coronata, Sb^. 



Gulf of California. 



Anachis costellata, B. §* Sbj/. 



Panama. 



Anachis iiuctuata, Sbi/. 



Panama. 



Anachis nigricans, Sbi/. 



Panama. 



Anachis pygmaea, Sbi/. 



Panama — Gulf of California. 



Anachis rugosa, Sbi/. 



Panama. 



Anachis varia, Sb;^. 



Panama. 



Columbella baccata, Gask. 



Gulf of California. 



Strombina gibberula, Sb^. 



Gulf of California. 



Strombina maculosa, Sbi/. 



Gulf of California, 



Strombina solidula. 



Gulf of California. 



Pisania insignis, Rve. 



Panama. 



Pisania lugubris, C. B. Ad. 



Panama. 



Pisania ringens, Rve. 



Panama. 



Pisania sanguinolenta, Dud. 



Gulf of California. 



Clavella distorta, Bligh. 



Panama. 



Murex plicatus, Sbj/. 



Gulf of California. 



Muricidea dubia. Swains. 



Gulf of California. 



Heterodonax bimaculatus. 



Gulf of California. 



Levenia coarctata. 



Gulf of California. 



Conella cedo-nulli. 



Gulf of California, 



Siphonalia pallida. 



Gulf of California. 



i>l521^ 



