THE MOUNT DESERT REGION 157 



Solaster endeca, both as to the type of bottom and the depth. 

 It was noted from 32 dredging stations and at S 12, 29. Sta- 

 tions: Common at D 39, 40, 50-52, 56. 



Order FORCIPULATA 



Asteridae 

 AsTERiAs Linne 



A. VULGARIS (Verrill). (Clark, 1904, p. 553, pi. 1, figs. 3, 4; 

 pi. 4, figs. 16, 17.) This species occurs, usually commonly, on 

 all kinds of bottom, do^vn to a depth of 240 feet. 



A. FORBEsi (Desor). (Clark, 1904, p. 552, pi. 1, figs. 1, 2; 

 pi. 4, figs. 14, 15.) We have not been able to satisfactorily 

 distinguish these 2 species. 



Class OPHIUROIDA Brittle or Serpent-stars 

 Order EURYALAE 



Gorgonocephalidae 

 GoRGONOCEPHALUS Leach Basket-stars 



G. ARCTicus Leach, {agassizii Stimpson.) (Clark, 1904, 

 p. 561, pi. 6, figs. 35, 36; pi. 7, figs. 45-47.) Two specimens 

 taken on rock bottom, depth 75 feet. Station : D 94. 



Order OPHIURAE 



Ophiactidae 

 Ophiopholis Miiller and Troschel 



O. ACULEATA (Liune). (Clark, 1904, p. 559, pi. 5, figs. 24r-27 ; 

 pi. 7, figs. 41, 42 ; Mortensen, 1927, p. 204, fig. 116.) The most 

 common brittle-star of this Region. Taken on almost all 

 bottoms, from the shore to 194 feet. An entire dredge full 

 of them was taken at D 70. Ovigerous females were taken 

 July 22, 1927. The species was found at 44 dredging stations 

 and 7 shore stations. Verv abundant at D 40. 



