18. 
‘Fig. 
_ Tornaxis singularis, n. (p. 311), Panzos, f. 
EXPLANATION OF PLATES. 665 
PLATE XVII. 
[The vertical lines indicate the natural size of the shells. | 
Fig. 1. Holospira polygyrella, v. Mart. (p. 284), Coban, 3: la, back view of the last whorls ; 
14, columella, within, still more enlarged view. 
2. Macroceramus concisus, Morel., var. mexicanus, n. (p. 287), Orizaba, 3. 
3. Holospira morini, Morel., var. pulchella, n. (p. 285), Livingston, }: 3a, back view of the 
last whorls. 
A. aptostoma, Pfr. (p. 288), Cordova, greatly enlarged view of the columella. 
5, morini, Morel., var. salpinx, Tristr. (p. 285), North Guatemala, Tristram’s type- 
specimen, #. 
6. Opeas bocourtianum, Cr. & Fisch., var. pittieri, n. (p. 292), La Palma, 8. 
fg guatemalense, Streb., var. majus, n. (p. 293), Miramar, 2. 
8. —— gladiolus, Cr. & Fisch. (p. 293), probably a young specimen of this species, from 
Merida, {. 
9. octonoides, C. B. Ad. (p. 294), Costa Rica, ?. 
10. —— micra, d’Orb. (p. 294), Teapa, 5. 
11. —— » var. caracasense, Reeve (p. 294), Teapa, 3. 
12. tryonianum, Tate, var. subovale, n. (p. 296), Turubares, 4. 
18. Subulina octona, Chemn., var. trochlea, Pfr. (p. 299), Teapa, } all #: a, upper whorls ; 
14. porrecta, n. (p. 300), Teapa, b, still more enlarged 
a5. stolli, n. (p. 800), Vera Paz, } view of the aperture. 
16, Pseudosubulina trypanodes, Pfr. (p. 303), Chiapas, ?:: 16a, back view; 16 4, more enlarged 
view of the aperture. All three figures drawn by E. Smith from the typical specimen 
in the British Museum. 
fortis, n. (p. 304), El Reposo, #: 17 a, upper whorls; 170, more enlarged view of 
the aperture. 
—— mitescens, n. (p. 304), Duefias, $: 18 a, upper whorls; 184, more enlarged view of 
the aperture. 
robusta, n. (p. 804), Omilteme, $. 
lirifera, Morel. (p. 304), Livingston, }: 20a, upper whorls; 206, more enlarged 
view of the aperture. 
salvini, n. (p. 805), Vera Paz, $: 21a, upper whorls; 216, more enlarged view of 
the aperture. 
PLATE XVIII. 
[The vertical lines indicate the natural size of the shells.] 
. Spiraxis nitidus, Streb., var. major, n. (p. 310), Las Vigas, not a full-grown speeimen, #. 
, var, pittieri, n. (p. 310), El Pital, ¢. 
. Opeas subula, Pfr. (p. 291), Antigua, living animal, from a drawing made by Dr. O. Stoll, 7. 
. Spiraxis sulciferus, Morel. (p.'308), Retalhuleu, living animal, from a drawing made by 
Dr. O. Stoll, 2. ; 
scalella, n. (p. 811), El Pital, +. 
4 
cENTR.-AMER., Terr. and Fluviat. Mollusca, Apri] 1901. 84 
