212 BIOLOGICAL SURVEY OF 



Dendronotidae 

 Dendronotus Alder and Hancock 

 D. FEONDOsus (Ascanius). {Amphitrite frondosa P. A. 

 Ascanius, 1774, 'In Mari Norvegico'; Tritonia arborescens 

 Gould, 1841, Inv. Mass. ; Tritonia reynoldsii Couthouy, 1838, 

 Boston Jour. Nat. Hist.; B. arborescens Gould, 1870, Inv. 

 Mass., p. 234, pi. 22, figs. 311, 313.) Very abundant on piles, 

 weir stakes, and the like. Under stones in pools at stations 

 S 12 and 18. Dredged at station 55 on hydroid stems at 30 to 

 40 feet. Hatched in laboratory first part of July from eggs 

 on material collected June 19, 1932. Dredged at station 94 

 from rock, depth 71 feet, and taken from the Sorrento Dock 

 and Coaling Station piles. Reported from Grand Manan to 

 Watch Hill. Grand Manan, Halifax, Strait of Belle Isle, 

 Labrador. 



Goniodoridae 

 Lamellidoris Alder and Hancock 



L. ASPERA. (Alder and Hancock, 1892, Bergh. Syst. der Nud. 

 Gaster; Doris aspera Alder and Hancock, 1842, Am. Mag. 

 Nat. Hist. ; Doris pallida Gould, 1870, Inv. Mass., p. 229, pi. 

 20, figs. 284, 287, 288 ; Onchidoris pallida Verrill, 1870, Amer. 

 Jour. Sci.) A very common form along the coast of this 

 Region, occurring at times in great numbers. In 1921 the 

 stones at the eastern end of Sand Beach were covered with 

 thousands on the under side. In 1926 the under side of the 

 float of the laboratory dock was similarly covered with them. 

 Generally found on piles at Sorrento Dock and Coaling Sta- 

 tion. Reported from Eastport to Watch Hill at various 

 points. Grand Manan, ''off the northern point of Duck 

 Island, in 25 fathoms gravel" (Stimpson) ; common in the 

 Bayof Fundy (Verrill). 



L. BiLAMELLATA (Liuue). (Lluue, 1878, Bergh. Semper 's 

 Reisen Archipel d. Philippinen; Limax bUamellatus Linne, 

 1861, Fauna Suecica 'Maris Norvegici'; Doris bilamellata 

 Gould, 1870, Inv. Mass., p. 228, pi. 20, figs. 285, 286; pi. 21, 

 figs. 299, 305-309.) Found on piles, but not as abundant as 

 above. Reported from Boston Harbor. 



