48 THE NAUTILUS. 
Calliostoma iridium, West Mexico. 
Calliostoma turbinum, Santa Barbara Is., 100 fms. 
Anaplocamus (new genus) borealis, 8. of Unimak Isld., 61 fms. 
“This very remarkable shell recalls a fresh-water genus at once 
and would easily be overlooked amid a quantity of Anculosa dila- 
tata. * * * It is probably referable to the family Trichotro- 
pide.” 
Solariella nuda, off Lower California, 298-455 fms. 
Solariella ceratophora, off La Paz. 
Rimula (?) expansa, Gulf of Panama. 
Emarginula flabellum, Lower California. 
Cloristes carpenteri, Gulf of Panama. 
Benthodolium pacificum, Gulf of Panama. 
Phos cocosensis, Gulf of Panama. 
Cominella brunneocincta, Gulf of Panama. , 
Fusus (?) rufocaudatus, Gulf of Panama. 
Tractolira sparta, Gulf of Panama to Acapulco. 
This new genus seems to be a degenerate form of Volutide. 
Scaphella benthalis, Gulf of Panama. 
Cancellaria centrota, Gulf of Panama. 
Cancellaria io, Gulf of Panama. 
Pleurotoma aulaca, off Acapulco. 
Pleurotomella castanea, E. from Galapagos Is. 
Fucula iphigenia, Gulf of Panama. 
Limopsis compressus, Gulf of Panama. 
Philobrya atlantica, Off Argentina. 
Callocardia stearnsii, Off Washington, near Tillamook. 
Callocardia lepta and gigas, Gulf of California. 
Callocardia ovalis, Gulf of Panama. 
Callogonia angulata, Gulf of Panama. 
Periploma stearnsii, Gulf of California. 
Periploma carpenteri, Gulf of California. 
All the species are from considerable depths; and many of them 
being of considerable interest, figures will be very acceptable. The 
Philobrya is the first marine form in which a glochidium stage, com- 
parable to that of the Unionidae, has been recognized. We have in 
a former issue referred to the important light on the morphology of 
the gill supplied by the Callocardia stearnsii. 
