THE MOUNT DESERT EEGION 119 



H. TENELLUM Hiiicks. (Hiiicks, 1868, p. 226, pi. 45, fig. 1.) 

 On hard bottoms, from shore to 330 feet. The most common 

 species of the genus in this region. Gonosomes present in 

 August. Stations : D 6, 10, 15, 20, 37, 39, 40, 60, 67, 69, 73, 

 80,90, 94; S 14. 



H. ARTicuLosuM Clark. (Nutting, 1900, p. 357, fig. 51.) 

 Distribution similar to H. halecinum, depth 26 to 330 feet. 

 Stations : D 20, 44, 51, 67, 75, 130. 



Campanulariidae 

 Campanularia Lamarck 



C. voLUBiLis (Linne). (Nutting, 1915, p. 31, pi. 1, figs. 4-6.) 

 On hard bottoms, depths 50 to 95 feet, usually common. Sta- 

 tions : D 20, 36, 69, 73, 86, 94. 



C. FRAGiLis (Hincks). (Nutting, 1915, p. 49, pi. 9, fig. 1.) 

 Taken on shells, depth 49 to 61 feet, at Station D 14. Nutting 

 considers it doubtful that this form occurs in New England. 



C. AMPHORA (L. Agassiz). (Nutting, 1915, p. 50, pi. 9, figs. 

 5-7.) On hard bottom, in 70 feet of water. Identification 

 doubtful. Station: D 39. 



C. INTEGRA Macgillivray. (Nutting, 1915, p. 33, pi. 1, fig. 7; 

 pi. 2, fig. 3.) Taken once on blue clay, depth 220 feet. Sta- 

 tion D 15, and once in tide pool, S 12. Identification doubtful. 



C. CALCioLiFEEA Hiucks. (Nuttiug, 1915, p. 49, pi. 9, figs. 

 2-4.) Taken twice on rock, depths 20 to 57 feet. Identity 

 open to question. Stations : D 4, 92. 



C. FLEXuosA (Alder). (Nutting, 1915, p. 45, pi. 7, figs. 1-6.) 

 The most common species of the genus, especially abundant 

 near low water on rock and seaweed, depth to 239 feet. There 

 is no doubt of its determination. Stations : D 82, 130 ; S 1, 

 2, 4, 12-14, 26, 28, 40. 



0. NEGLECTA (Aider). (Nutting, 1915, p. 46, pi. 8, figs. 1, 2.) 

 Taken once on Laminaria, near low water. Gonosomes pres- 

 ent June 25, 1927. Station : S 24. 



