SPH.,ERIUM 303 



1811. Cornea communis [pars] : Megerle, Mag. Gesell. Nalurf. 



Freunde Berlin, v, p. 57. 

 1813. Cardium corneum : Rackett, in Pulteney, Cat. Dorset., 



ed. 2, p. 32. 



1817. Tellina cornea, Linn. : Dillwyn, Cat. Shells, i, p. 104. 



1818. Cyclas (Corneocyclas) cornea, Drap. : (Ferussac in litt.) 



Blainville, Diet. Sci. Nat., xii, p. 279. 



1820. Cyclas nucleus : Studer, Nalunv. Anz. Ally. Sehweiz. 



Gesell., iii, p. 93. (In reprint, " Syst. 

 Verzeichn.," p. 29.) [A deformity.] 



1821. Cyclas cornea, Linn. : C. Pfeiffer, Natury. Dcutsch. 



Moll, i, p. 120, pi. V, f. 1 & 2. 

 1823. Tellina pusilla : [Brown], Ency. Brit., ed. 6, vi, p. 408. 

 1823. Cycladites corneus : Kruger, Geschichte Urwelt, ii, 



p. 469. [Teste Bronn, Index Pal, i, p. 371.] 

 1827. Cyclas pusilla. Brown : Brown, Illust. Conch. Brit., 



ed. 1, pi. xvii, f. 15. 



1831. Cyclas cornea : Turton, Manual, p. 13, f. 2. 



1832. Cyclas staynicola. Leach MSS. : Jenyns, Trans. Camb. 



Phil. Soc, iv, p. 296, in synon. 

 1837. Cyclas nucleus, Studer : Charpentier, Neue Denkschr. 



Ally. Schiveiz. Gesell., i, no. 2, p. 25. 



1840, \ Cyclas cornea, Linn. : Gray, in Turton's Manual, new 



Apr. / ed., p. 280, pi. i, f. 2. 



Post \ 



Q , I Cyclas cornea, Pfeiffer : Brown, Illust. Conch. Brit., 



jg^Q I ed. 2, p. 93, pi. xxxix, f. 19. 



1841. Cyclas plumbeus, auct. ? : Villa, Dispos. Syst. Conch., 

 p. 44. 



1843. Cyclas flavescens : Macgillivray, Hist. Moll. Aberdeen, 



pp. 208 & 246. 



1844. Cyclas scaldiana. Nob. : Normand, Notice nouv. Cyclades, 



p. 5, f. 1, 2. 



1845. Cyclas cornea, Pfeiiler : Brown, Illust. L. & F.-W. 



Conch. Brit., p. 117, pi. xxiv, f. 4; xxxvii, 

 f. 3 & 4. 



1845. Cyclas citrina : Brown, o. c, p. 131, pi. xxiv, f. 15. 



1846. Pisidium cornea, Lamk. : Verany, Gat. Anim. Invert. 



Genoa, Descriz. Genova, ii, p. 93. (In 

 reprint, p. 13.) 

 1849. Cyclas cornea, Linnteus : Forbes & Hanley, Brit. Moll., 

 ii, p. 113, pi. xxxvii, f. 3-6. 



1851. Tellina aquata, Sheppard [MS.] : Gray, List. Brit. 



Anim. in Brit. Mus., vii, p. 19, in synon. ^ 



1852. Cyclas cornea, Linn. : Leach, Moll. Brit. Synop., p. 290. 



1853. Sphcrrium corneum : Bourguignat, Rev. d- May. Zool., 



Ser. II, toni. v, p. 345. {Amen. Malac, 

 i, p. 6.) 



' In 1840 (Turlon'.t Manual, p. 280) Gray pave this as " Cycto^ aquata, 

 Sheppard MSS. Brit. Mus." iu the synonymy of 6'. rivkola. 



