Reference List of SoidJi African Non-marine Mollnsca. 269 



570. ASSEMANIA SINICA, Nevill. 



1880 Assiminia sinensis, Nev.,Journ.Asiat.Soc.Bengal,xlix,2.p.lGl. D. 

 1887 Assiminea sinica, Nev. (for sinensis, Nev., not chinensis, Pfi 1 .), 



Bttg., Jahrb. d. Deutsch. Mai. Ges. xiv. p. 203. D. 

 Type in Indian Museum, Calcutta. 

 Hab. NATAL. Wydenham ; Umkomaas (Burnup). 

 Described from Hong Kong. 



571. ASSEMANIA UMLAASIANA, Smith. [S.A.M.J 



1902 Assiminia umlaasiana, Smith, Journ. of Concb. x. p. 248.pl. 4, 



f. 3. D.F. 



Type in British Museum. 



Hab. NATAL. In an ocean cave at Isipingo Rocks, half a mile 

 south of Urnlaas Eiver mouth (Burnup). 



ORDER ASPIDOBRANCHIA, Schweigger, 1820. 

 (Naturges. d. Skeletlose Thiere, p. 720, as Aspiclobranchiata ; emend. Menke, 1830.) 



SUB-ORDER RHIPIDOGLOSSA, Troschel, 1847. 

 (Arehiv. f. Naturg. xiii, 2. p. 385, and Wiegmann's Handbuch ck-r Zool., 



Ed. 3. 1848.) 



FAMILY HYDEOCENID^, Bourguignat, 1877. 



(Descr. de deux nouveaux Genres Algeriens, p. 38.) 



GENUS HYDROCENA, Parreyss, 1846. 

 (Hermannsen's Indicis Generum Malac. i. p. 546.) 



Type of Genus, H. cattaroensis (Pfr.). 



572. HYDROCENA NOTICOLA, Benson. [S.A.M.] 



1856 Hydrocena noticola, Bs., A.M.N.H. xviii. p. 439. D. 

 1858 ,, Pfr., Mon. Pneum. ii. p. 158. D. 



1897 Assiminea tyttha, M. & P., A.M.N.H. xix. p. 639. pi. 17, f. 11. D.F. 



Type of tyttha in British Museum ; noticola ubi ? 



Hab. CAPE OF GOOD HOPE. Table Mountain, Camps Bay 

 (Layard). Simonstown ; Hout Bay (Connolly). Grahamstown ; 

 Kowie; Bathurst ; Port Elizabeth (Favquhar). 



NATAL. Howick (tyttJia) ; Scottburgh ; Karkloof ; Dargle ; Game 

 Pass ; Ntimbankulu (Burnup). 



The type set of tyttha has been most carefully compared with a 

 large series of noticola from Table Mountain, with the result that no 

 specific difference has been found between them. 



