582. MOLLUSCA. 
Littorina nebulosa (Lam.), Philippi, Abbild. neuer Conch. ii. p. 225, t. 5. fig. 20‘; Mérch, Malak. 
Blatt. xxiii. p. 136 (1876) °; Reeve, Conch. Icon. x., Litorina, t. 11. fig. 55 *, 
Littorina scabra, var. nebulosa, Tryon, Manual of Conch. ix. p. 244, t. 43. fig. 38 (copied from 
Reeve) ’. 
Litorina angulifera, var. minor, Weinkauff, in Martini & Chemnitz, Syst. Conch.-Cab. ed. 2, 
Litorina, p. 39°. 
Rather thin, with feeble spiral strise, whitish, with reddish or brown clouds and streaks ; columellar lip pink. 
Whorls not so convex as in L. angulifera, but flattened above. 
Hab. FE. Mexico, Vera Cruz (Uhde, in Mus. Berol.). 
Yucatan: Carmen Island (Uhde, in Mus. Berol.). 
Honpuras (Cuming 4° °). 
E. Costa Rica: Puerto Limon (Biolley). 
N. Panama: Chagres (reds °). 
Also widely distributed in the West-Indian Islands: Cuba (Pfeiffer & d@ Orbigny: 
Littorina tigrina), Jamaica (Carpenter >), Haiti (Richard1°), Guadaloupe 
( Hoitessier) ; and occurring in Venezuela—Puerto Cabello (Tams), Cayenne*, &c. 
Krebs found it in clusters on wood lying on the beach at high- and low-water 
mark ©. 
7. Littorina albida. 
Inttorina albida, Philippi, Abbild. neuer Conch. iii. p. 68, t. 7. fig. 9 (1848)'; Weinkauff, in 
Martini & Chemnitz, Syst. Conch.-Cab. ed. 2, Liturina, p. 81, t. 11. fig. 1 (copied from 
Philippi) *. 
Littorina aspera, var., Tryon, Manual of Conch, ix. p. 249, t. 44. fig. 81 (copied from Weinkauff)’. 
Hab. W. Nicaragua: Realejos (Petit '). 
According to Philippi’, this species resembles in coloration ZL. conspersa and 
L. puncticulata of the same coast, but seems really nearer the Atlantic L. nebulosa, 
by the form of the whole shell and by that of the aperture. I have not seen a 
specimen of it. 
8. Littorina columellaris. 
Luttorina columellaris, d’Orbigny, Voy. Am. mér., Moll. p. 392 (1835-43)'; in Sagra’s Hist. fis. 
polit. y nat. de Cuba, Mol. p. 116, t. 15. figg. 18-20’; Philippi, Abbild. neuer Conch. ii. 
p. 226, t. 5. fig. 19 (not 21)°; Kiister, in Martini & Chemnitz, Syst. Conch.-Cab. ed. 2, 
Litorina, p. 24, t. 3. figg. 16-18°; Reeve, Conch. Icon. x., Litorina, t. 17. fig. 97°; Tryon, 
Manual of Conch. ix. p. 245, t. 43. fig. 37 (copied from Reeve) (excl. ceteris figuris) °. 
Hab. %. Costa Rica: Costa Rica (v. Seebach). 
N. Panama: Colon, on wooden piles on the beach (Oswald, 1892, in Mus. Hamburg.). 
Also in the West Indies: Guadaloupe (Beau) and Martinique (de Candé®) ; and on 
the coasts of Venezuela and Northern Brazil (d’Orbigny 1 * 4), 
