AMPULLARIA. 419 
S.W. Costa Rica: Palmar, south of the Rio Grande de Terraba (Cherrie, ex 
Pittier). | 
N. Panama: Chiriqui (Méschler, in coll. Dunker). 
Allied to A. delattrei and A. ghiesbreghti, but usually smaller and more solid; 
peristome not bright-coloured, very feebly expanded, sharp, whitish, and banded, even 
on the columellar margin. I am not quite sure whether I have correctly identified 
Reeve’s species, as he gives no locality ; but the Costa-Rican specimens before me 
agree very well with his figure. From the true JA. reflexa, Swains., it is sufficiently 
distinct by its globose (not ovate) form. 
13. Ampullaria delattrei. (Tab. XXIV. fig. 8.) 
Ampullaria lattrei, Reeve, Conch. Icon. x., Ampullaria, t. 5. fig. 22 (1856)'; Tristram, P. Z. S. 
1863, p. 414°. 
Ampullaria delattrei, Fisch. & Crosse, Miss. Scient. Mex., Mollusca, ii. p. 246, t. 45. figg. 4, 44°. 
Globose, with short conical spire and rather deep suture, greenish-yellow, with narrow somewhat darker 
green bands; peristome yellow, with a black streak on the inside, as in some varieties of A. flagellata, 
a. Long. 49, diam. 45; apert. long. 32, diam. 24 millim. 
b. ” 46, ” 42 ; ” 32, » 22 ” 
C. eo 8 4 363 5 ry) 27, 4, 20 ” 
a. Dimensions of Reeve’s figure ; 6. Measurements given by Fischer and Crosse (diam. 32, as given in the 
text, is evidently a misprint for 42, as is proved by the figure) ; c. Specimen from Coban, collected by Conradt, 
with thin yellow peristome. 
Hab. N. Guaremata: Lake of Peten (Salvin); Cubilguitz (Conradt); Coban 
(Delatire 1, Conradt); Vera Paz, in marshes (Morelet & Bocourt =), 
EK. GuatemaLa: Valley of the Polochic River, in plenty (Sto//). 
- Distinct from A. ghiesbreghti and its varieties by the more regularly globose convexity 
of the last whorl and the lighter coloration ; in other respects very near it. 
I have not seen Salvin’s specimen, but one from the same locality sent by Dr. O. Stoll, 
and from this our figure is taken. Fischer and Crosse (loc. cit.) give for A. delattrei 
still another figure, t. 48. figg. 7, 7a, which differs considerably from the other and 
that given by Reeve, having a higher spire and another convexity of the last whorl ; 
it is probable, therefore, that it does not belong to the same species *. They do not 
state where this particular specimen was found, but they give for the species generally, 
in addition to the localities mentioned above, 8. Mexico, Isthmus of Tehuantepec 
(Sumichrast). Owing to this uncertainty, I prefer not to include the Mexican habitat 
in the range of the present species. 
: * This shell is not unlike Reeve’s A. swainsoni, Phil., as figured by Hanley (Conch. Misc., Ampullaria, t. 1. 
figg. 1, 4) and by Reeve (Conch. Icon. x., Ampullaria, t. 27. fig. 128). 
53* 
