THE MOUNT DESERT REGION 123 



species. Gonosomes present, August 10, 1927. Stations : D 5, 

 10, 15, 18, 20, 31, 35-37, 39, 40, 44, 51, 52, 56, 60, 67, 69, 70, 

 73, 86, 93, 94, 102, 104, 130 ; S 12, 14, 29. 



LovENELLA Hincks 



L. GRANDis Nutting. (Nutting, 1900, p. 354, tig. 45.) On 

 other organisms, from low water to 60 feet. Stations : D 11, 

 14;S12. 



Lafoeidae 

 Lafoea Lamouroux 



L. DUMOSA (Fleming). (Hincks, 1868, p. 200, pi. 41, fig. 1.) 

 A common species, usually attached to other hydroids, depth 

 30 to 330 feet. Stations: D 5, 7, 10, 15, 18, 20, 37, 38, 44, 49, 

 55, 56, 60, 67, 80, 103. 



FiLELLUM Hincks 

 F. SERPENS (Hassall). (Hincks, 1868, p. 214, pi. 41, fig. 4.) 

 Attached to numerous objects, chiefly hydroids and bryozoa, 

 from shore to 330 feet. An abundant species when found. 

 This blue-green species has previously been reported from 

 the Atlantic coast of America only at Casco Bay. Stations : 

 D3, 5, 6, 14, 15, 18, 20-22, 34, 36-38, 43, 56, 67, 86, 94, 130: 

 S 9, 11, 14. 



Sertulariidae 

 DiPHASiA L. Agassiz 



D. ROSACEA (Linne). (Nutting, 1904, p. 107, pi. 28, figs. 

 4, 5.) Found on rock and blue clay, depth 30 to 239 feet. 

 Gonosomes present August 10, 1926. Stations : D 13, 15, 

 20, 130. 



D. FALLAX (Johnston). (Nutting, 1904, p. 109, pi. 29, figs. 

 2-6.) On gravel and blue clay, depth 150 to 220 feet. Gono- 

 somes found August 12, 1926. Stations : D 15, 18. 



Sertularia Linne 



S. PUMiLA Linne. (Nutting, 1904, p. 51, pi. 1, figs. 1-3.) 

 Almost always attached to algae, from low water to 61 feet. 

 Gonosomes present in July and early August. Stations : D 3. 

 14, 73, 86; S 4, 12, 13, 26, 28, 31, 39^1. 



