OTOSTOMUS. 203 
mate whorl. I have seen only a few specimens belonging to the vars. } and ¢, all 
collected by H. Pittier and P. Biolley. 
6. Otostomus serperastrum. 
Bulimus serperastrus, Say, New Harmony Disseminator, Jan. 1, 1829, p. 25 (ed. Binney, p. 30) *; 
Pfr. Monogr. Helic. Vivent. ii. p. 1022, iii. p. 341°; and in Martini & Chemnitz, Syst. 
Conch.-Cab. ed. 2, Bulimus, p. 82, t. 32. figg. 1, 2, t. 39. fig. 5‘; Reeve, Conch. Icon. v., 
Bulimus, t. 40. fig. 252°; Philippi, Abbild. neuer Conch. iii. p. 97, Bulimus, t. 9. fig. 6°; 
Binney, Terr. air-breath. Moll. N. Am. ii. p. 274, t. 50. fig. 27, and iv. p. 126°. 
Bulimus (Drymeus) serperastrus, Pfr. in Malak. Blitt. ii. p. 152 (1855) °. 
Bulimulus (Drymeus) serperastrus, v. Mart. in Albers’s Die Helic. ed. 2, p. 212’; Binney & Bland, 
Land and Fresh-water Shells of N. Am. i. p. 192, figg. 334, 335 (the latter copied from a 
drawing by Mr. Say)"; Fisch. & Crosse, Miss. Scient. Mex., Mollusca, i. p. 488, t. 24. 
fig. 4 (copied from Say’s drawing) ™. 
Drymeus serperastrus, Tryon, in Am. Journ. Conch. iii. p. 167, t. 9. (18) fig. 4°. 
Bulimulus serperastrus, Strebel, Beitr. Mex. Land- und Siissw.-Conch. v. p. 88, t. 6. fig. 12". 
Bulimus liebmanni, Pfr. in Zeitschr. fiir Malak. 1846, p. 158" ; Monogr. Helic. Vivent. ii. p. 106°; 
Reeve, Conch. Icon. v., Bulimus, t. 70. fig. 506 (errore ziebmanni) ™. 
Bulimus (Mesembrinus) liebmanni, Albers, Die Helic. ed. 1, p. 157 ™. 
Orthalicus (Mesembrinus) liebmanni, H. & A. Adams, Gen. Moll. ii. p. 157”. 
Bulimus nitelinus, Reeve, Conch. Icon. v., Bulimus, t. 59. fig. 398 (young specimen) ”. 
Bulimus paivanus, Pfr. in Malak. Blatt. xiii. p. 81 (1866) *; Novit. Conch. iii. p. 309, t. 75. figg. 
4,5; Monogr. Helic. Vivent. vi. p. 35”. 
Bulimulus (Drymeus) paivanus, Fisch. & Crosse, Miss. Scient. Mex., Mollusca, i. p. 490, t. 21. 
figg. 1, la”. 
Bulimulus paivanus, Strebel, Beitr. Mex. Land- und Siissw.-Conch. v. p. 82, t. 6. fig. 11, t. 12. 
fig. 18, t. 18. fig. 12 (radula), t. 14. figg. 9@ (genit. appar.), 104, 8, p, 11, t. 16. fig. 3 
(jaw) *. 
Otostomus paivanus, v. Mart. Conch. Mittheil. 11. p. 192”. 
Hab. Norta America: Texas". 
E. Mexico: on the road between Vera Cruz and Mexico; Jalapa (Hoge, M. Tru- 
jillo); Almolonga, near Jalapa (Hoge); Cordova (Hoge; one young specimen) ; 
Tierra Colorada, between Jalapa and Vera Cruz (Dona Estefania >); Paso de 
San Juan and Loma de Piedra on the Rio Jamapa, near Vera Cruz (Strebel *°) ; 
between Paso de Ovejas and the plantation of Mirador (Strebel *°); Bobo, near 
the Port of Vera Cruz (Hége); Vera Cruz, in the littoral region (Berendt *'~**). 
Yucatan: Sisal (Morelet }”). 
According to Strebel 25, this species lives in the Savanas on high grasses; Herr 
Hoge, on the contrary, has found it in dense forest, free from underwood, at Bobo. 
‘As in O. lilacinus, an older lip is formed accidentally on the back of the last whorl 
in some specimens. | 
The word “ serperastrum” in Latin means a kind of basket-work for children, and 
26* 
