384 FAUNA HAWAUENSIS 
(2) Ofpeas prestont Sykes. 
Opeas prestont Sykes, P. Malac. Soc. London, m1. (1898), p. 73, pl. v. fig. 4. 
A long series, which I am entirely unable to sever from the shell recently 
described by me from Ceylon. The whole genus, however, is notorious for having 
been discovered in widely separated localities, and probably this species has been 
transported with plants. 
Has. Hawaii, Kawailoa, Mauna Loa at 1500 feet (Perkins). 
(3) Opeas pyrgiscus Pfeiffer. 
Bulimus pyrgiscus Pfeiffer, P. Zool. Soc. London, 1861, p. 24; Malak. Blatt. 
1861, p. 15; Novit. Conch. 11. p. 425, pl. xcvr. figs. 10—12. 
This form does not seem to have been found in recent years. 
Has. Hawaiian Islands (Pfeiffer). 
Opeas striolata Pease, is recorded as Hawaiian by Nevill (Handlist Ind. Mus. 
pt. 1. 1878, p. 166); it appears to be a manuscript name only. 
CaeciLioiwes (Blainville) Herrmannsen. 
(1) Caecthiordes baldwint Ancey. 
Caecilianella baldwint Ancey, Mem. Soc. Zool. France, v. (1892), p. 718. 
I have followed Mr Smith (J. Conch. vi. pp. 341—342) as to the generic name. 
Has. Oahu, Manoa (Ancey). 
Fam, SUCCINEIDAE: 
Succrnea Draparnaud. 
Succinea Draparnaud, Tabl. des Moll. 1801, p. 55 (first species S. amphzdza Drap.). 
The large number of unfigured species described from the Hawaiian Islands 
renders the identification of specimens belonging to this puzzling group by no means 
an easy task. 
Pease proposed (J. Conchyl. xvi. 1870, p. 89) the genus Catznella for Succinea 
rubida; also the genus 7ywella (P. Zool. Soc. London, 1871, p. 459) for S. elongata. 
I have thought it best to leave all the forms in Szccznea, and have listed the species in 
alphabetical order. 
