82 MARINE SHELLS. 



OdOStomia COnoidea, Broe. Alderney, a few young specimens in shell- 

 sand (Marquand). In dredgings (Tomlin). Var. australis, Jeff. Channel 

 Isles (Br. Con.) 



0. acuta, Jeff. Channel Isles (Br. Con.) Alderney, rare (Marquand). In 



dredgings (Tomlin). Y ox. gracilis, Marsh. Channel Islands (Marshall). 



Var. attenuata, Marsh. Guernsey, 20 fms. (Marshall) 

 0. COnspieua, Aid. Guernsey (Jeffreys, Marshall). Alderney, very rare 



(Marquand). Herni shell beach (Metcalfe). In dredgings (Tomlin). 

 0. unidentata, Mont. Dredged between Guernsey and Herm (Tomlin). 



Var. data, Jeff. Guernsey (Marshall). 

 0. turrita, Han. In dredgings (Tomlin). Var. striolata, Aid. Guernsey 



and Herm (Marshall) . 

 0. plieata, Mont. Channel Isles (Br. Con.) Dredged between Guernsey 



and Herm (Tomlin) . Alderney (Marquand) . 



0. inseulpta, Mont. Guernsey (Marshall). Aldemey, occasional in shell- 

 sand (Marquand). Herm beach and dredged (Tomlin). Var. Icevissima, 

 Sars. Guernsey, 20 fms. (Marshall). 



0. diaphana, Jeff. Guernsey (Jeffreys). Guernsey and Sark, 12-22 fms. 



(Marshall). 

 0. Obliqua, Aid. Guernsey (Jeffreys, Marshall). Alderney, rare (Marquand). 



Herm (Hanley, Jeffreys). In dredgings (Tomlin). 

 0. Warreili, Thomp. Channel Islands (Marshall). Var. intermedia, Marsh. 



Guernsey (Marshall). 

 0. doliolif Oralis, Jeff. Guernsey (Jeffreys, Marshall). Herm (Marshall). 



0. deeussata, Mont. Guernsey (Jeffreys, Marshall). Herm (Marshall). In 



dredgings and on Herm beach (Tomlin) . 

 0. indistineta, Mont. Guernsey (Jeffreys, Marshall). Alderney, very rare 



(Marquand). In dredgings (Tomlin). Var. minima, Marsh. Guernsev, 



18 fms. (Marshall). 

 0. interstineta, Mont Channel Islands (Marshall). In dredgings (Tomlin). 



Var. terebellum, Phil. Guernsey and Sark (Marshall). Var. suturalis, 



Phil. Guernsey (Br. Con.) 

 0. Spiralis, Mont. Guernsey, very common in dredgings off Fermain Bay 



(Tomlin). Alderney, common in shellsand, and on the shell beach 



(Marquand) . 

 0. fenestrata, Forb. Guernsey (Marshall). In dredgings (Tomlin). 



0. exeavata, Phil. All the Channel Islands (Marshall). Guernsey (Met- 

 calfe, Bailee and Jeffreys). Alderney shellsand, very rare (Marquand). 

 In dredgings (Tomlin) . 



0. sealaris, Phil. Coralline zone, Guernsey (Hanley, Bailee and Jeffreys). 

 Alderney, very rare (Marquand). Herm, alive, and. Sark (Marshall). In 

 dredgings and on Herm beach (Tomlin). 



0. laetea, L. Channel Islands (Marshall) Guernsey and Herm, dead shells 

 common on the shore and in dredgings (Toml in ). Alderney, alive at low 

 water ; dead shells common (Marquand). 



0. innovata, Monts. (= 0. pusilla, Jeff., Br. Con.) Guernsey and Herm 

 (Marshall). Alderney shellsand, frequent (Marquand). In dredgings 

 (Tomlin). Var. nana, Marsh. Guernsey, 20 fms. (Marshall). 



0. pusilla, Phil, (non Jeff.) Guernsey (Marshall). 



0. aeieula, Phil. Guernsey (Marshall). Alderney, very rare (Marquand)- 

 Var. ten-is, Forb. Guernsey, 20 fms. (Marshall). Var. obeliscus, Jeff. 

 Guernsey, 18 fms. (Marshall). 



0. ventrieosa, Forb. Channel Islands (Marshall). Guernsey (Br. Con.) 

 Herm beach and dredged (Tomlin) . 



