346 MOLLUSCA. 
Unicolorous, greyish. Length about 25 millim. . 
Hab. E. Mexico: Playa Vicente, State of Vera Cruz (Sadlé 12), 
2. Philomycus crosseanus. 
Tebennophorus crosseanus, Strebel, Beitr. Mex. Land- und Siissw.-Conch. iv. p. 25, t. 10. fig. 6 
(animal), t. 9. figg. 18 (radula), 22 (jaw) (1880)?. 
Pule brown, with numerous blackish spots, which unite on each side so as to nearly form a continuous band. 
Length about 16 millim. 
Hab. E. Mexico: locality not indicated (Strebel '). 
3. Philomycus auratus. 
Tebennophorus auratus, Tate, Am. Journ. Conch. v. p. 153 (1870)’. 
Yellowish-grey, with numerous small white and gold spots and a few larger black ones, the last forming 
a black streak on the Jateral margin. Length, when extended, 8 inches, breadth 1 inch. | 
Hab. E. Nicaracua: Javali in Chontales, under stones and on decaying timber, not 
uncommon (Zate'). 
4, Philomycus costaricensis. 
Philomycus costaricensis, Mirch, in Vidensk. Meddelelser Kjébenh. 1857, p. 341°; Malak. Blatt. 
vi. p. 109 (1860) *. 
Tebennophorus costaricensis, Binney, Ann. N. York Acad. Sci. 1. p. 261, t. 11. figg. M (living 
animal), N (radula) (1879) °*; iil. p. 87, t. 8. fig. N (radula) (1884) °*. 
Yellowish, feelers, dorsal streak, and scattered spots blackish. Length about 45 millim. 
Hab. Cuntran Costa Rica: without nearer indication of locality, at an elevation of 
2000 feet (Zirsted ! ?). . 
Fam, LIMACIDE. 
Slugs, with a reduced or internal shell. Jaw and radula as in the Fam. Oxygnatha, 
anted, p. 104. 
VELIFERA. 
Velifera, Binney, Ann. N. York Acad. Sci. i. p. 257 (1879). 
Shell vitrinoid, partly covered by prolonged lobes of the mantle. A simple longi- 
tudinal mucous pore at the hinder end of the foot overlapped by a horn-like promi- 
nence. Jaw smooth, with median cutting projection. Radula like that of Zonites; 
marginal teeth aculeiform, bifid. 
Confined to Costa Rica. 
1. Velifera gabbi. 
Velifera gabbi, Binney, Ann. N. York Acad. Sci. i. pp. 257, 258, t. 11. figg. A-D (living animal, 
shell, and radula) '; i. p. 86, t. 2. fig. H (radula) *. 
