''"im'] PROCEEDINGS OF THE NATIONAL MUSEUM. 417 



DALL'S GALAPAGOS SPECIES. 



In Mr. Ball's '' Preliminary Koport* on the Collection of MoUusca 

 and Bracliiopoda obtained in l887-'88" on the voyage of the U. S. 

 Fish Commission steamer Albatross from Fortress Monroe to Califor- 

 nia, etc., the following new species are «lescribed by him, and are re- 

 corded as occnrring ''near the Galapagos Islands," having been 

 dredged at the stations indicated. 



1. Leda pontonia Ball. 

 Stations 2807 and 2808, 812 and 634 ftithoms, mnd and sand. 



2. Verticordia perplicata Dall. 

 Station 2807, in 812 fathoms. 



3. Dentalium megathyris Dall. 



Station 2807, in 812 fathoms; this form was also dredged off Chiloe 



Island and southwest Chili at stations 2788 and 2789, in 1,050 and 1,342 



fathoms. 



4. Actaeon perconicus Dall. 



"Near the Galapagos" * * * 812 fathoms. 



5. Scaphander interruptus Dall. 



Station 2807, * * * 812 fathoms. 



6. Pleurotoma exulans Dall. 



Station 2808, * * * 634 fathoms. 



7. Calliotectuni vernicosum Dall. 



Station 2807, * * * in 812 fathoms. 



8. Pleurotomella argeta Dall. 



Station 2807, * * * 812 fathoms. 



9. Pleurotomella (Gymnobela) agonia Dall. 



Stations 2807 and 2808. 



10. Pleurotomella suffusa Dall. 

 Station 2807. 



11. Chrysodomua (Sipho) testudinis Dall. 



Station 2807. 



12. Nassa To-wnsendi Dall. 

 Station 2807. 



13. Scala pompholyx Dall. 

 Station 2807. 



" Proc. U. S. Nat. Mua., Vol. xii, pp. 219-362, pis. v-xv, 1889. 



Pro(;. N. M. 93 27 



