338 MOLLUSCA. 
I have not seen Heilprin’s specimens; they may belong to S. brevis, Dkr. The 
type is from the Southern United States; a variety (wnicolor, Tryon) occurs at New 
Orleans. 
8. Succinea pueblensis. 
Succinea aurea (Lea), v. Mart. in Malak. Blatt. xi. p. 50 (1865) *. 
Succinea pueblensis, Fisch. & Crosse, Miss. Scient. Mex., Mollusca, i. p. 669, t. 26. figg. 15, 15 a-c”. 
A rounded, ventricose, rather solid species, with comparatively short and blunt spire, and somewhat broadly 
flattened unequal striz. 
Hab. Centra Mexico: neighbourhood of Puebla (Boucard?); Mexico, without nearer 
indication of locality, probably from near the capital (Uhde '). 
Allied to S. totteniana, Lea, from New England and New York, in the general 
outlines, but with different sculpture. 
9. Succinea costaricana. (Tab. XIX. fig. 6.) 
Succinea, sp., Biolley, Moluscos terr. y fluv. de Costa Rica, p. 15 (part.) (1897) 
1 
os 
Testa late ovata, inequaliter ruguloso-striata, fusco-succinea, tenuis; spira tumida, obtusa; anfr. 3, sat convexi, 
sutura sat profunda, discreti, ultimus superne paulum complanatus; apertura late ovata, $ totius longi- 
tudinis occupans, superne leviter angulata, medio dilatata, infra late rotundata, margine columellari tenui, 
bene arcuato. 
Long. 11, diam. 8; apert. long. 83, lat. 6 millim. (Djiri Durunia). 
» 114,, 83 ” 9, ,, 54 ,, (San José), 
” 10, ” 6; ” 7, ” 4 a) (La Palma). 
” 8, ” 6; ” 53, ” 4 ” (collected by Rogers). 
Hab. Centra Costa Rica: environs of San José and at La Palma, 1161 and 1600 
metres above the sea (Biolley, 1891 and 1895); Costa Rica, without nearer 
indication of locality (Rogers). 
S.W. Costa Rica: Thermal springs of Djiri Durunia, valley of the Rio Diquis, 
900 metres above the sea, and Savana de Guacimo, in the valley of the Rio 
Brus (Pittier, 1897). 
Perhaps also at Coban, Guatemala, where Conradt collected a very similar shell, but 
all his specimens which I have seen are somewhat injured. 
Near S. pueblensis, but thinner, with finer sculpture and more arcuated columellar 
margin. 
G. F. Angas (P. Z.S. 1879, p. 484) mentions S. undulata, Say, as having been found 
by the late Dr. Gabb in the coast-region of (S.E.) Costa Rica to the lower hills; it is 
probable, however, that the specimens collected by Dr. Gabb belong to a different 
spec es, either to 8. guatemalensis or S. costaricana. I have examined many specimens 
of this genus collected in Costa Rica by H. Pittier and P. Biolley (but none from the 
S.E. coast), and have never found S. undulata amongst them. 
