[taylok] marine MOLLUSCA 29 



MODIOLA, Ltunarck. 

 19. MoDiOLA RECTA, Conrad. 



Jomn. Acad. Nat. Sci. Fhihi., vol. vii., pt. 2, p. 24:1, pi. xix., fig. 1 (isy?). 

 Var = Myfilns {Modiola) fiahellatus Gould, Proc. Bost. See. Nat. Hist, 

 vol. ilL, p. .343 (Dec, 1850): and IT. S. Expl. Exped.. Mollusca, p. 4.5:^, fijr. 

 .561 and .5fila (18.52). 



A tine, large species, attaining sometimes to a length of seven 

 inches. It has not as yet been found commonly in our waters, but 

 ])erhaps it only needs searching for. 



Dr. Newcombe has taken it in Ganges Harbour, Salt Spring Island, 

 and at Clayoquot Sound. I have found it at Victoria, and have received 

 specimens from the west coast of Vancouver Island. According to 

 Carpenter, our local form of this species is the M. flabellata of Gould. 

 Avhich is broader than the typical M. recta of Conrad. 



20. MoDiOLA MODIOLA, Liunc, sp. 

 Mytilua modioluft, Linne, Syst. Nat., ed. xii., vol. i., pt. 2, p. 11.58, no. 2.5() (1767). 

 Common everywhere. The deep water forms are much larger than 

 the between tides varieties, attaining a length of live inches. Jeffreys 

 (Brit. Conch., vol. ii., p. 113) records specimens, from the Northumber- 

 land coast, measuring 9^ inches in length and proportionately broad. 



ADULA, H. and A. Adams. 



21. Adula stylina, Carpenter. 



Rept. Brit. Assoc, IStW, p. (i44 (August, 1864); and Ann. Mag. Nat. Hist., Hrd serie.s, 

 vol. xiv., p. 425 (Dec, 1864). 



Found boring in soft rock between tides ; near Victoria. Lord and 

 New combe ; Sooke Harbour, Professor Macoun. 



MODIOLAEIA, Beck. 



22. MoDioLARiA L.EVIGATA, Gray, sp. 



ModiiiUi la ilgafd, Gray, Suppl. to App. to Parry's Second Voyage (1824). 



Not uncommon in 10 to 30 fathoms, Victoria and Nanaimo. Dr. 

 Dawson found a living specimen associated with Saxicava rugosa, at low 



edulis, Modiola modiola, Modiolaria nigra, M. kevigata, M. marmorata, Nucula. 

 tenuis, Yoldia llinatuln, Leda minuta, Vcncricardia bovealis, Lucina bon-a/is. 

 Serripcs (iroenlandicus, S. Laperousii, Macoma iiasufa, M. edcntula, M. incoii- 

 spirua, Standrlla falcata, Mya fruncata, Sawicova rugosa. Beta tnrricida, Admete 

 Conthouyi, Buccinvm Muerchiannm, Chrysodotnusfornicatus, C. liratiis, Trophou 

 wulticostatiis, T. urjyJieus, Pur-2Ji(ra lima, Tricliotropia cancellata, Memlia reticu- 

 lata, Natica claitsa, Limatia pallida, Acmna patina, Cryptobranchia conrenfricti. 

 Margarita helicina, and TonicrUa lineata. 



Further information as to the northern range of our shells is given in later 

 papers by the same author, reference to which will be found below under,— Cry/^^o- 

 don tit-ricntus, Macoma cdentula. Pot itella pen ita, and Tritonium Oregonense. 



