1913.] Clark, Echinoderms from Lower California. 195 



Phataria unifascialis. 



Linckia (Phataria) unifascialis Gray, 1840. Ann. Mag. Nat. Hist., Vol. 6, 

 p. 285. 



Phataria unifascialis Sladen, 1889. 'Challenger' Asteroids, p. 786. 



Of this common and characteristic west Mexican species, there are three 

 small specimens from Pichilingue Bay, east coast of Lower California. 

 The largest has R about 70 mm. 



Echinaster tenuispinus. 

 Verrill, 1871. Trans. Conn. Acad., Vol. 1, p. 577. 



These specimens call for no special comment. The largest has R = 50 

 mm.; in the smallest R = 18 mm. 



San Bartolome, west coast of Lower California. 

 Agua Verde Bay, east coast of Lower California. 

 San Francisquito Bay, east coast of Lower California. 

 San Esteban Island, Gulf of California. 

 Five specimens. 



Henricia clarki. 



Fisher, 1910. Zool. Anz., Vol. 35, p. 573. 



There is a single individual in the collection, which seems to belong to 

 this species. In it R = about 75 mm. On only a few of the proximal 

 adambulacral plates are there as many as three spinelets in the furrow, and 

 in a few other details the specimen is not typical but in view of the locality 

 and depth, there can be little doubt of its belonging to this species. 



Station 5682. Off Cape St. Lucas, Lower California, 491 fms. Bottom 

 Temp., 40.8°. 



Henricia lseviuscula annectens. 



Fisher, 1910. Zool. Anz., Vol. 35, p. 572. 



Two small Henricias, with R about 20 mm. seem to represent this form. 



San Bartolome, west coast of Lower California. 



Station 5693. Northwest of San Nicolas Island, California, 451 fms. 



