MOLLUSCA 389 
(21) Swcctnea rotundata Gould. 
Succinea patula Mighels, P. Boston Soc. 1. (1845), p. 21 [nec S. Aatwla Brug., 
nec King. 
Succinea rotundata Gould, P. Boston Soc. 11. (1847), p. 182; U.S. Explor. Exped. 
Moll. pl. 1. fig. 14 [shell and animal]. 
Succinea newcomb: Pfeiffer, P. Zool. Soc. London, 1854 [May, 1855], p. 297; 
Novit. Conch. 1. pl. 1x. figs. 3—5 ; Reeve, Conch. Icon. Succznea, fig. 61. 
Has. Oahu (Gould, &c.).—Molokai (Pfeiffer).—Hawaii, Kohala (Perkins). 
See the remarks under S. cepul/a, which species seems to be, like the present one, 
widely scattered over the islands. 
(22) Swccenea rubella Pease. 
Succinea rubella Pease, P. Zool. Soc. London, 1871, p. 460. 
The coloration of this species is very variable, and some specimens are found of a 
straw-colour ; it appears to be close to S. canel//a Gould. 
Has. Lanai (Pease); Mountains (Perkins). 
(23) Szccenea rubtda Pease. 
Succinea rubida Pease, J. Conchyl. xvii. (1870), p. 97. 
Has. Kauai (Pease); North side (Baldwin). 
(24) Succenea thaanume Ancey. 
Succinea thaanumt Ancey, P. Malac. Soc. London, 11. (1899), p. 273, pl. x11. fig. 3. 
Has. Hawaii, Olaa (Ancey),. 
(25) Swccenea venusta Gould. 
Succinea venusta Gould, P. Boston Soc. 1. (1847), p. 186; U.S. Explor. Exped. 
Moll. pl. i. fig. 25. 
Has. Hawaii, Mauna Kea (Baldwin); Kona at 3000 feet, and Olaa Puna 
(Perkins). 
The specimens from Kona are whitish and slightly more shouldered. 
