104 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 20 



LIST OF MATERIAL 



OF THE FAMILY MYTILIDAE 



PRESERVED IN THE ALLAN HANCOCK 



FOUNDATION COLLECTION 



The list of stations under each species is arranged as correctly as 

 possible from north to south, after the records at hand. Place names are 

 given as listed in the Millionth Map of Hispanic America, American 

 Geographical Society. Alternative names for stations occupied by the 

 Velero III from 1931 to 1942 will be found in the Allan Hancock Pa- 

 cific Expeditions, Volume 1, number 3. The numbers marked BS are 

 mud sample stations taken separately, and alternative names for these will 

 be found in the Allan Hancock Pacific Expeditions, volume 6. Other 

 numbers represent stations at which collections were made by members 

 of the Allan Hancock Foundation staff, or by others. 



The stations lying within a line from Cabo San Lucas, Baja California 

 and Cabo Corrientes, Jalisco, Mexico, are recorded as from the Gulf of 

 California. 



Dead specimens and loose valves are listed as valves. 



