1916.] Osburn and Nichols, Shore Fishes from Lower California. 141 



Htemulid and Scisenid groups will serve to indicate how varied and numer- 

 ous are the economic species. 



In the preparation of this report we have been greatly aided by the notes 

 taken during the work of* collecting by Dr. (/has. H. Townsend, in charge 

 of the expedition. Many color notes on the fresh specimens were made 

 by Dr. Townsend and some of these have been incorporated in the following 

 text. 



The illustrations of the new species are the work of Mr. K. Kimoto, 

 under the personal supervision of the junior author. The funds for this 

 work were supplied by the American Museum of Natural History, in which 

 institution the types of the new species are placed. 



The list of new species is as follows: 



Raja microtrachys Amia guadalupensis 



Urobatis concentricus Girella simplicidens 



Letharchus pacificus Hermosilla robusta 



Bascanichthys bascanoides Callyodon compressus 



Fundulus parvipinnis, subsp. brevis. Callyodon microps 



Tylosurus pterurus Dactyloscopus cinctus 



Siphostoma exile ' Lucioblennitis lucius 

 Atherinopsis sonorse 



Heterodoxtid.e. Bull-head Sharks. 

 Gyropleurodus francisci (Girard). Bull-head Shark. 



Magdalena Bay, March 12, one specimen eight inches long, dredged at 



13 fathoms. 



(taleid.e. Requiem Sharks. 



Galeus dorsalis (Gill). 



Tiburon I., April 12, a female three feet long, taken on a hand-line, con- 

 tained six unborn young, each ten inches in length. 



Triakis semifasciatum Girard. Cat Shark. 



East side of Cerros I., March 11; Port San Bartholome, March 13 and 



14 and again on April 23, and Ballenas Bay, off Abreojos Pt., March 1(3, all 

 taken in the seine. 



Prionace glauca ( Linnaeus). Great Blue Shark. 

 Carmen I., April 3, a young specimen taken on a hand-line. 



