MOLLUSCA. 633 
’ Dall [Proc. US. Nat. Mus, ea p. 354 (1896)] states that Bulimulus pallidior, 
Ow.» @ species inhabiting Lower California, “is represented by a very slightly modified 
variety on the mainland as far south as Costa Rica ”; and that Bulimulus baileyi is 
supposed to have been found at Hermosillo, in Sonora. For the former, see Sowerby, 
Proc. Zool. Soc. 1833, p. 72; Pfeiffer, Monogr. Helic. Vivent. ii. p. 61; Binney, Land 
and Freshw. Shells of N. Am. i. p. 190, figg. 340, 341: among the numerous Costa 
Rican shells received during recent years from H. Pittier and P. Biolley, I have not 
found anything like it. 
EUCALODIUM (p. 254). 
Kucalodium blandianum (p. 258). 
Lucalodium blandianum, vay. minor, Fischer & Crosse, Miss. Scient. Mex., Moll. ii. p- 665, t. 72. 
fier, 22a", 
Long. 61, diam. 122, apert. 14 millim. 
For this species, Pilsbry and Dall [Nautilus, ix. p. 51 (1895)] propose a new section, 
Oligostylus, the axis in EF. blandianum being straight and smooth, and the radula 
narrower (36 lateral teeth, in E. ghiesbreghti 65). 
2 (a). Eucalodium sumichrasti. 
Eucalodium sumichrasti, Crosse & Fischer, Journ. de Conch. xxvi. p. 250 (1878) *; xxvii. p. 46, 
t. 2. fig. 2°; Miss. Scient. Mex., Moll. ii. p. 665, t. 72. figg. 1, la®. 
Intermediate between Z£. blandianum and E. decollatum. 
Long. 65, diam. 20, apert. 14 millim. Whorls 8. 
Hab. $.E. Mexico: State of Chiapas (Sumichrast }-), 
Kucalodium cereum (p. 263). 
Eucalodium cereum, Fischer & Crosse, Miss. Scient. Mex., Moll. ii. p. 666, t. 72. figg. 8, 3a’. 
23. Eucalodium hippocastanum. 
Eucalodium hippocastanum, Dall, Nautilus, xi. p. 61 (1897)’. 
Differs from E. bowcardi in its smaller size, dark chestnut-brown colour, less sharp sculpture, and the presence 
of spiral lines. 
- Long. 32, diam. 9-2, apert. 8 millim. 
Hab. W. Mexico: San Sebastian, State of Jalisco (£. W. Nelson '). 
24. Kucalodium dalli, n. n. 
Anisospira strebeli, Dall, Proc. U.S. Nat. Mus. xix. p. 353, t. 33. fig. 7 (1896) *. 
Not so large and stout as Z. iebmanni, shorter and more slender than Z. hyalinum, whitish, with trumpet- 
like aperture. 
Length (decollated) 29, diam. 10 millim. 
Hab. W. Mexico: Huilotepec, State of Oaxaca (H. W. Nelson *). 
As there is already an E. (Anisospira) strebeli, Pfeffer (1887) (cf. antea, p. 265), the 
name of this species must be changed. 
BIOL. CENTR.-AMER., Terr. and Fluviat. Mollusca, February 1901. 80 
