294 | MOLLUSCA. 
Stenogyra subula (Pfr.), Binney, Terr. Air-breath. Moll. N. Am. ii. p. 285, t. 53. fig. 6”. 
? Bulimus plicatellus (Guppy ?), Tate, Amer. Journ. of Conch. v. p. 157 (1870) ™ (ef. Bland, ibid. 
iv. p. 187, concerning Guppy’s species). 
Hab. Norva America: South Carolina and Florida 4 ?°. 
(S.E.) Costa Rica (Gabb ®): probably on the eastern slope (Biolley & Pittier). 
N. Panama: on an island in the lagoon of Bocas del Toro, in the forest (Zate ™). 
VENEZUELA: Caracas ©. 
AntiLLes: Cuba‘, Jamaica}, Puerto Rico 9, St. Thomas 3, Grenada. 
Remarkable by its small size and the large terminal whorls; it has somewhat the 
appearance of the young state of O. subula, but is quite distinct from that species. 
The Costa Rican specimens I have seen are smaller (length 5-6 millim.) than most of 
the Antillean and Venezuelan ones (length 7 millim. or more). 
7. Opeas micra. (Tab. XVII. fig. 10.) 
Helix micra, VOrbigny, Mag. Zool. 1835, Class V. no. 61, p. 9°. 
Bulimus micra, ®@Orbigny, Voy. dans ?Amér. mér., Moll. p. 262, t. 41. figg. 18-20 (1847) *; Pfr. 
Monogr. Helic. Vivent. ii. p. 165° (nec op. cit. iv. p. 462; nec Reeve). 
Opeas costato-striatus (Pfr.), Fisch. & Crosse, Miss. Scient. Mex., Mollusca, i. p. 598, t. 26. figg. 5, 
5a, 6 (part.) °. 
Opeas caracasensis, form B, Strebel, Beitr. Mex. Land- und Siissw.-Conch. v. p. 100, t. 7. fig. 8a’. 
Synopeas caracasensis, Biolley, Moll. Terr. y Fluv. de Costa Rica, p. 16 (1897) °. 
Hab. ¥%. Mexico: Agua Caliente, Camino de Arroyo Hondo, Rancho de Guerrero, ° 
Rancho del Eligio, and Camino del Obispo, all near Misantla (Strebel °). 
S.E. Mexico: Teapa and San Juan Bautista in Tabasco (H. H. Smith). 
N. GuaTEMALA: Coban (Sarg *). 
W. GuateMaLa: Retalhuleu, in woods, under decayed leaves and rotting pieces of 
wood (S¢ol/). 
N.W. Costa Rica: Bay of Salinas, near Guanacaste (Pittzer). 
N.E. Costa Rica: confluence of the Rio Sarapiqui and the Rio Puerto Viejo, at an 
elevation of 121 metres (Biolley °). 
CrentraL Costa Rica: Santa Clara, at an elevation of 250 metres above the sea 
(Biolley ®). 
S.W. Costa Rica: Great Range between the Rio Grande and Boruca, El Pital in 
the valley of Rio Naranjo, at an elevation of 200 metres (Pittier). 
Souto AMERICA: Venezuela, Guiana, Brazil, Bolivia. 
ANTILLES: Haiti. | 
Var. caracasense. (Tab. XVII. fig. 11.) 
Bulimus caraccasensis, Reeve, Conch. Icon. v., Bulimus, t. 79. fig. 580 (1849) "7; Pfr. Monogr. Helic. 
Vivent. iii, p. 404°; iv. p. 464°; vi. p. 102". 
