424 MOLLUSKS OF TflK GALAPAGOS STEARNS. 



Order ANOM A LODESM ACE A. 

 Suborder ANATINACEA. 



Family VEimcORDTTDv?^]. 



Ot'iins VERTICORDIA Mood. 

 47, Verticordia peiplicata l>all. 

 Off Galapagos Isliiiuls, 812 fiithonis, Albatross. 

 Suborder ENSIPHONACEA. 



Family G A 8TK( )( ' 1 1 A<: N 1 1 ).E . 

 Genus GASTROCHJENA Speugler. 



48. Gastrochaena regulosa Sby. 

 Galapagos Islands, Carpenter. 



49. Gastrochaena brevis Sby. 

 Galapagos Islands, Carpenter. 



50. Gastrochaeua hyalina Sby. 



Galapagos Islands, Carpenter. 



Suborder ADESMACEA. 

 Family LMIOLADID.F. 



Genus PHOLAS Liuue, 

 51. Pholas acuminata Sby. 

 'i = Pani])hoI(is acitmhitdo. 

 Cliatliaiii Island, .Tones. 



Class SCAPHOPODA. 



Order SOLENOCONCH A. 



Family DFNTALIID.F. 



Goims DENTALIUM Liuue, 

 52. Dentalium megathyris Dall. 

 Off the Galapagos Islands in 812 fathoms, Albatross. 



Class GASTROPODA. 

 Stal5c'lti«« ANISOF»LEURA. 



Superorder EUTHYNEURA. 



Order OPISTHOBRANCHIATA. 



Suborder TECTIBRANCHIATA. 



Family A( 'T.KONID.F. 

 Geuiis ACTEON Montlbit. 

 53. Actaeon perconicus Dall. 



Near the Galapagos iu 812 fathoms, Albatross. 



