147 
2. A MoNOGRAPH OF SCARABUS, A GENUS OF AIR-BREATHING 
Gastreroropous Mo.niuscA; FROM SPECIMENS IN THE 
Cumineian Conztection. By Artuur Apams, R.N., 
F.L.S. ETc. 
Scarasus, Montfort. 
Testa ovata, spira subobtusa, anfractibus compressis, varice utrin- 
que instructis ; apertura ovali intus utrinque dentata ; peristo- 
mate non continuo, labro simplici, subexpanso. 
The Scarabi have the eyes sessile on the inner bases of the ten- 
tacles, which are short and annulated; they live like most of the 
other genera of Awriculide, in the damp woods and mangrove marshes. 
None have been found in the African or American regions, but all the 
species at present known are from the East Indies. 
ScaRABUS IMBRIUM, Montfort, Conch. Syst. vol. i.; Férussac, 
Prodrome, p. 101; Chemnitz, Conch. vol. ix. pl. 136. fig. 1249 
& 1250. 
Helix scarabeeus, Linn.—Helix pythia, Miiller.—Bulimus scara- 
beeus, Bruguidre—Auricula scarabzeus, Lamarck. 
S. testd ovato-pyramidali, rufo-fusco variegatd, longitudinaliter 
valde striatd; spird acuminatd ; aperturd subrotundatd, spiram 
aequante ; labro postice inflexo. 
Shell ovately pyramidal, variegated with red-brown, longitudinally 
strongly striated, spire acuminated ; aperture subrotundate, as long 
as the spire; outer lip posteriorly inflexed. 
Hab. Island of Bohol, Philippines; in dry woods, under stones, 
and in earth; H.C. (Mus. Cuming.) 
The large size, pyramidal form and strongly striated epidermis are 
peculiar to this species: the upper tooth on the inner lip is more tri- 
angular, and the posterior part of the outer lip is more inflexed than 
in S. Lessont. 
Scarasus Lessont, Blainville, Dict. Sci. Nat. pl. 48. fig. 32; 
Lesson, Voy. de la Coquille, vol. ii. p. 334. pl. 10. fig. 4. 
Auricula Petiveriana, var. Deshayes. 
S. testd ovatd, longitudinaliter substriatd, rufo-castaneo varie- 
gatd; spird lateribus concavis ; aperturd oblongd, spird lon- 
giore ; labio subplano, labro postice arcuato. 
Shell ovate, longitudinally substriated, variegated with chestnut- 
red; spire with the sides convex ; inner lip rather flattened, outer 
lip posteriorly arcuated. 
Hab. New Ireland; Hinds. (Mus. Cuming.) 
The oval form and oblong mouth render this species easily distin- 
guished from S. imbrium: the upper tooth on the inner lip is longer, 
and two of the five teeth in the outer lip are more prominent than 
the others. 
