GEOGEAPHICAL DISTRIBUTION. 



The following is a complete list of the Stations at which bivalves were obtained. The 

 exact latitude and longitude, the depth and the nature of the bottom, will be given in this 

 place, but not under the "habitat" of each species, so that needless repetition will be 

 avoided. Only the number of the Station is quoted in the body of the work, but the 

 geographical position is given to save the reader the inconvenience of constantly referring 

 back to the subjoined list. 



Under each Station are also given the names of the species there obtained, which will 

 be of use to those interested in the study of special faunas. 



The order of the Stations follows the course of the voyage, and such localities as have 

 no Station number assigned to them follow those numbered Stations to which they are 

 most closely situated. 



Station II.— January 13, 1873 ; lat. 38° 10' N., long. 9° 14' W. ; depth, 470 fathoms ; 

 bottom, green mud (off the west coast of Portugal). 



Limopsis minuta, Philippi. | Pecten sulcatus, var. 



Leila rectidorsata, Seguenza (?). 



Station VIII.— February 12, 1873; lat. 28° 3' 15" N., long. 17° 27' ^Y. ; depth, 620 

 fathoms ; bottom, volcanic mud (a little south of the Canary Islands). 



Lyonsia formosa, Jeffreys. 

 JSfecBva teres, Jeffreys. 

 Montacuta pura, n. sp. 



Cryptodqn croulinensis, Jeffreys. 

 Limopsis minuta, Philippi. 

 Leda messanensis, Seguenza. 



Station 23.— March 15, 1873 ; lat. 18° 24' K, long. 63° 28' W. ; depth, 450 fathoms; 

 bottom, Pteropod ooze (off Sombrero Island, West Indies). 



Necera claviculata, Dall. 



Necera sp. 

 Cryptodon sp. 



Limopsis aurita, Brocchi. 

 Lima {Limatula) confusa, n. sp. 

 Lima [Limatula) laminifera, n. sp. 



Station. — St. Thomas, West Indies ; depth not stated. 



Amussium cancellatum, n. sp. 



