148 
Scarabus Petiverianus, Ferussac, Prodrome, p. 101 ; Petiver, 
Gazophylacia Naturae, pi. 4. fig. 10. 
Cochlea Bengalensis, Petiver. —Auricula Peteveriana, Desk. 
S. testa ovato-oblongd, Iceviuscula , longitudinaliter tenuissime 
striata, albida castaneo variegatd; aperturd spiram cequante ; 
labro arcuato. 
Shell ovately obloug, rather smooth, longitudinally very finely 
striated, whitish, variegated with chestnut-brown; aperture as long 
as the spire ; outer lip arcuated. 
Hab. Borneo ; Cagayan, province of Misamis; Mindanao ; in 
damp woods, under decayed leaves; H. C. (Mus. Cuming.) 
This species is characterized by its smaller size, more ovate form, 
smoother epidermis, the arcuated outer lip, and rotundate aperture. 
Scarabus trigonus, Troschel, Wiegmann’s Archiv, 1840. 
S. testa triangulari, rufo-fusco marmoratd , anfractu ultimo trans- 
verso gibbo angulato, aperturd angustata, labro valde rejlexo. 
Shell triangular, marbled with red-brown, last whorl transverse, 
gibbpus, angulated; aperture narrowed; outer lip greatly reflected. 
Hab. Sarsogon ; Luzon ; dense woods, damp places ; H. C. (Mus. 
Cuming.) 
The triangular form, approaching that of Tomogerus , at once di¬ 
stinguishes this species : the middle tooth on the inner lip is double, 
the upper tooth prominent: there are five teeth in the outer lip, two 
being more prominent than the others. 
Scarabus plicatus, Ferussac, Prodrome, p.101; Chemn. Conch, 
vol. ix. pi. 136. fig. 1252, 1253. 
Helix scarabseus, var. Chemn. —Auricula plicata, Deshay es. — 
Scarabus triangularis, Benson. 
S. testa subtriangularis obliqud, gibbosd, spira brevi, acuminata, 
lateribus concavis, anfractu ultimo postice gibboso antice sub- 
angidato distorto, epidermide longitudinaliter oblique striata, 
castaned, fasciis pallidis confuse ornata ; aperturd angustd, la- 
bio antice flexuoso, labro arcuato, antice valde dilatatd, reflexd, 
rimd umbilicali longd transversa. 
Ashy or chestnut-brown, with pale, rather indistinct bands ; much 
larger and more triangular than S. Borneensis, until the outer lip regu ¬ 
larly arcuated. 
Hab. India; Benson. Jaffna, in saline marshes; Dr. Gardner. 
(Mus. Cuming.) 
Sc arabus striatus, Reeve, Ann. & Mag. Nat. Hist. 1842, vol.ix. 
p. 220. fig. 9. 
Auricula scarabaeus, Quoy, Voy. de VAstrolabe, Zool. vol. ii. p. 162. 
pi. 13. f. 24. 
S. testa ovato-trigonali, fusco variegatd, longitudinaliter valde 
striata ; spira acuminata; labio antico subfexuoso. 
