OTOSTOMUS. 215 
Bulimulus (Scutalus) Ffenestrellus, v. Mart. in Monatsber. Akad. Wiss. Berl. 1863, p. 541°; Malak. 
Blatt. xii. p. 35 (1865) (part.)*; Fisch. & Crosse, Miss. Scient. Mex., Mollusca, i. p- 529°. 
Bulimus fenestrellus, Pfr. Monogr. Helic. Vivent. vi. p. 144°. 
Bulimulus fenestrellus, Strebel, Beitr. Mex. Land- und Sussw.-Conch. v. p. 64, t. 5. fig. 104, t. 13. 
fig. 5 (radula), t. 14. figg. 6a, B (anatomy) ”. 
Bulimus gealei, H. Adams, P.Z.S. 1867, p. 309, t. 19. fig. 21°; Pfr. Monogr. Helic. Vivent. vi. 
p. 110°. 
Bulimulus (Scutalus) gealei, Fisch. & Crosse, loc. cit. p. 536, t. 21. figg. 3, 3a, 5". 
Var. subunicolor : albus, fasciis solum in fauce conspicuis. 
Bulimulus (Mormus) hegewischi, varr. c, d, v. Mart. in Malak. Blatt. xii. pp. 28, 29 (1865) ™. 
Bulimulus (Scutalus) gealei, var. 8, Fisch. & Crosse, loc. cit. p. 536, t. 21. figg. 36, 38d”. 
Bulimulus fenestrellus, var., Strebel, loc. cit. p. 65, t. 5. fig. 10a”. 
Otostomus fenestrellus, v. Mart. Conch. Mittheil. ii. p. 193". 
Hab. CzntraL Mexico: elevated plain of Mexico (Uhde 3-610); Matamoros Izucar, 
State of Puebla (Boucard’); Puebla (Berkenbusch) ; Patzcuaro, State of Micho- 
acan (Hegewisch ! 2). 
The variety seems to be found in company with the banded specimens. In the 
disposition of the bands this species bears some resemblance to O. serperastrum and 
even to O. emeus; but the sculpture is distinctly more coarse, the vertical strize are 
somewhat more wrinkled and prominent, the spiral striz are not so fine and crowded, 
but rather irregular and broad, and, finally, the whole shell is more or less provided 
with small rounded impressions, which look as if they had been inflicted by blows from 
a hammer (malleated). 
The specimen from Costa Rica, and the young one of yellow colour mentioned in my 
paper 4, I believe, after a fresh examination, do not belong to this species; the former 
= 0. costaricensis, Pfr. 
22. Otostomus attenuatus. (Tab. XIII. figg. 15, 15a,, 16, 16 a, 4.) 
Bulimus attenuatus, Pfr. P. Z. S. 1851, p. 256°; in Martini & Chemnitz, Syst. Conch.-Cab. ed. », 
Bulimus, p. 83, t. 30. figg. 9, 10 *; Monogr. Helic. Vivent. iii. p. 836° (nec Mousson, 1854). 
Bulimus (Leiostracus) attenuatus, Pfr. in Malak. Blatt. ii, p- 152 (1855) *. —_ 
Bulimulus (Drymeus) attenuatus, v. Mart. in Albers’s Die Helic. ed. 2, p. 212°; Fisch. & Crosse, 
Miss. Scient. Mex., Mollusca, i. p. 491, t. 23. figg. 1, la’. 
Bulimulus attenuatus, Strebel, Beitr. Mex. Land- und Siissw.-Conch. v. pp. 79-81, t. 5. figg. 7a, & 
(not full-grown), 84, 0, ¢, t. 13. fig. 13 (jaw) ‘ _ 
Otostomus (Drymeus) attenuatus, v. Mart. Conch. Mittheil. 11. P. 192°. 7 ; . 
Bulimus kefersteini, Pfr. in Malak. Blatt. xiii. p. 82 (1866) °; Novit. Conch. i. p. 310, t.75. fig. 8“; 
Monogr. Helic. Vivent. vi. p. 53”. 
b. concolor: albus. 
Bulimulus attenuatus, Strebel, loc. cit. t. 5. fig. 1 
~ 12 
Oo 6 
