IREDALE & o'dONOGHUE : BRITISH NUDIBRANCHIATE MOLLUSCA. 209 



EUBRANCHUS ciNGULATUS (Alder & Hancock, 1847). 

 Eolis cingulata, A. & H., Mon. Nudib. Moll. (Ray Soc), Fam. 3, 

 pi. xxviii, pt. 3, 184:7 ; new name for Eolis hystrix, A. & H. 

 E{olis) hystrix, A. & H., Ann. & Mag. Nat. Hist., vol. ix, p. 35, 

 March, 1842 : Cullercoats. 



Not Eolidia histrix, Otto, Consp. anim. quor. marit. non edit., 

 pt. 1, p. 8, 1821. 

 Galvina cingulata, A. & H., Conch. Soc. List, p. 18 ; Eliot, p. 170. 



EUBRANCHUS viTTATus (Alder & Hancock, 1842). 

 E{olis) vittata, A. & H., Ann. & Mag. Nat. Hist., vol. ix, p. 35, March, 

 1842: Cullercoats. 



Mon., Fam. 3, pi. xxix, pt. 6, 1854, 



Galvina cingulata, var. vittata, A. & H., Conch. Soc. List, p. 18. 

 vittata, A. & H. ; Eliot, p. 169. 



Genus Cumanotus, Odhner, 1907. 

 Cumanotus, Odhner, K. Svensk. Vet. Akad. Handl. (Stockh.), 

 N.S., vol. xli. No. 4, pp. 26-9, Feb. 1, 1907. 



Type by monotypy, G. laticeps, nov. = Coryphella heaumonti, 

 Eliot, 1906. 



cumanotus beaumonti (Eliot, 1906). 

 Coryphella heaumonti, Eliot, Journ. Marine Biol. Assoc. U.K., 



N.S., vol. vii, p. 361, June, 1906 : Plymouth. 

 Cumanotus laticeps, Odhner, K. Svensk. Vet. Akad. Handl. (Stockh.), 



N.S., vol. xli, No. 4, pp. 26-9, Feb. 1, 1907. 

 Cumanotus heaumonti, Eliot, p. 125, pi. viii, figs. 1-5^ p. 169. 



Genus Coryphella, Gray, 1850. 

 Coryphella, Gray, Figs. Mollusc. Anim., vol. iv, p. 109, 1850. 



Type by subsequent designation, A. & H., Mon., pt. 5, 

 App. p. xxii, 1855 : Eolis rufihranchialis, Johnston. 



coryphella rufibranchialis (Johnston, 1832). 

 Eolis rufihranchialis, Johnston, Mag. Nat. Hist. (Loudon), vol. v, 



p. 428, fig. 85, June, 1832 : Berwick Bay. 

 Eolidia embletoni, ibid., vol. viii, p. 378, fig. 36, July, 1835 : Berwick 



Bay. 

 Eolis rufihranchialis, Johnston, A. & H., Mon., Fam. 3, pi. xiv, 



pt. 4, 1848. 

 Coryphella rufihranchialis, Johnston, Conch. Soc. List, p. 18 ; Eliot, 



p. 168. 



coryphella pellucid a (Alder & Hancock, 1843). 

 Eolis pellucida, A. & H., Ann. & Mag. Nat. Hist., vol. xii, p. 234, 

 Oct. 1843: Cullercoats. 



Mon., Fam. 3, pi. xix, pt. 3, 1847. 



Coryphella pellucida, A. & 11., Eliot, p. 168. 



