SPIRAXIS. 309 
According to the observations of Dr. Stoll, the living animal is 8 millim. long, 
yellowish-grey ; the upper feelers 23 millim. long, blackish, the lower feelers distinct. 
It ascends rotten trunks of trees, but needs much moisture. 
Var. berendti. 
Spiraxis berendti, Pfr. Malak. Blatt. ix. p. 97 (1862) ’°; Monogr. Helic. Vivent. vi. p. 189"; 
Fisch. & Crosse, loc. cit. p. 618, t. 25. figg. 4, 4a, 6, 
Volutaxis berendii, Strebel, Beitr. Mex. Land- und Siissw.-Conch. v. p. 120, t. 7. fig. 10". 
Hab. E. Mexico: Mirador (Berendt 10-18, Sartorius 13); Cafiada grande de Coatepec, 
near Jalapa 13, 
3. Spiraxis tenuis. 
Spirazis tenuis, Pfr. Malak. Blitt. xv. p. 84 (1868) *; Monogr. Helic. Vivent. viii. p. 2577; Fisch. 
_& Crosse, Miss. Scient. Mex., Mollusca, i. p. 614, t. 25. figg. 5, 5 a, 6° (not full-grown ?). 
Hab. K. Mexico: Orizaba (Sallé1—*), 
4. Spiraxis acus. 
Spiraxis acus, Shuttleworth, in Mittheil. nat. Ges. Bern, 1852, Diagn. neuer Moll. no. 2, p. 27°; 
Pfr. Monogr. Helic. Vivent. ii. p. 470°; Fisch. & Crosse, Miss. Scient. Mex., Mollusca, i. 
p. 614°. 
Volutaxis acus, Strebel, Beitr. Mex. Land- und Siissw.-Conch. v. p. 125°. 
Hab. K. Mexico: Cordova (Jacot-Guillarmod +). 
Not again found and not recognized by later authors. 
Var. minor. 
Spirawis acus, var. minor, Fisch. & Crosse, loc. cit. p. 614, t. 25. figg. 6, 6a, db’. 
Hab. E. Mexico: Orizaba (Botteri °). 
5. Spiraxis tenuecostatus. 
Volutaxis tenuecostatus, Strebel, Beitr. Mex. Land- und Siissw.-Conch. v. p. 121, t. 17. fig. 11 
(1882) °*. 
Hab. E. Mexico: Agua Caliente, near Misantla (Strebel '). 
6. Spiraxis miradorensis. 
Volutaxis miradorensis, Strebel, Beitr. Mex. Land- und Siissw.-Conch, v. p. 122, t. 17. figg. 23 a, 4, 
and 35 (1882) ’. 
Hab. ©. Mexico: Mirador (Séredel'). 
