SCARABUS 



Plate II. 



Species 9. (Mus. Cuming.) 

 Scarabus semisulcatus. Scar, testa sulabbremato- 

 pgramida/i, purpurascente-castaned, varicibus albidis, 

 anfractibus oclo, lavigatis ; aperturd rotundato-ovatd, 

 parviusculd, subochraced ; marginibus approximatis. 

 The half-grooved Scarabus. Shell rather shortly 

 pyramidal, purple-chestnut, varices whitish, whorls 

 eight, smooth ; aperture rotundately ovate, rather 

 small, yellowish, with the margins approximating. 

 Adams, Pro. Zool. Soc. 1850, p. 151. 



Hab. ? 



A smooth purplish-chestnut shell, of rather shortly 

 pyramidal form, semi-grooved below the suture, but not 

 more so than other species. The plicated grooving round 

 the shoulder of the whorls is a generic rather than a spe- 

 cific character. 



Species 10. (Mus. Cuming.) 



Scarabus imperfohata. Scar, testa ovald, compressd 

 fulvescente, rufo-castaneo marmoratd, spird brevius- 

 c/ild, acuminata, anfractibus octo, laoigatis ; aperturd 

 oblique ovatd, ocltraced. 



The imperforate Scarabus. Shell ovate, compressed, 

 fulvous, marbled with reddish-chestnut, spire rather 

 short, acuminated, whorls eight, smooth ; aperture 

 obliquely ovate, yellowish. 



Adams, Pro. Zool. Soc. 1850, p. 151. 



Hab. Borneo. 



The specific name of this species appears to me to be 

 scarcely more appropriate than the last. The umbilicus in 

 Scarabus has little, if any, specific value. In all closely 

 convoluted shells having, generically, an appressly ex- 

 panded columella!* lip, the axis of convolution so far varies 

 as that the umbilicus may be more covered in some spe- 

 cimens than in others. 



Species 11. (Mus. Cuming.) 



Scarabus Borneensis. Scar, testa subquadrato-ovatd, 

 tenuiculd, fulvescente, castaneo fasciatd et maculatd, 

 spird brevi, obtusiusculn ', anfractibus septem ad octo, 

 supeme vix plicato-striatis ; aperturd oblongo-ovatd ; 

 margine filed, supeme subemarginatd. 



The Borneo Scarabus. Shell somewhat squarely 

 ovate, rather thin, spire short, somewhat obtuse, 



fulvous, banded and blotched with chestnut, whorls 

 seven to eight, scarcely plicately striated round the 

 upper part ; aperture oblong-ovate, fulvous at the 

 edge, slightly notched at the upper part. 



Adams, Pro. Zool. Soc. 1850, p. 152. 



Hab. Borneo. 



A shell of rather light structure, in which the painting 

 inclines to be disposed in transverse bands. 



Species 12. (Mus. Cuming.) 



Scarabus Cumingianus. Scar, testa obeso-ovald, crassd, 

 sordide livido-fuscescente, spird brevi.usculd, varicibus 

 validis sed indislinctis, anfractibus octo ad noveui, 

 subrugatis ; aperturd quadrato-ovatd, labro calloso- 

 producto, supeme emarginato. 



Cuming's Scarabus. Shell stoutly ovate, thick, dull 

 livid-brown, spire rather short, varices strong but 

 indistinct, whorls eight to nine, rather wrinkled ; aper- 

 ture squarely ovate, lip callously produced, notched 

 at the upper part. 



Petit, Pro. Zool. Soc. 1843, p. 3. 



Hab. Boljoon, Island of Zebu, and Tanhay, Island of 

 Negros, Philippines ; Cuming. 



A dull livid-brown species, of rather stout callous 

 growth, the varices being much absorbed. 



Species 13. (Mus. Cuming.) 



Scarabus ovatus. Scar, testa ovatd, subobesd, albidd, 

 rufo-castaneo plus minus marmoratd, anfractibus no- 

 vem ad decent, striis plicatis corrugato-descendentibus ; 

 aperturd subquadrato-ovatd, parviusculd, margine sub- 

 producto. 



The ovate Scarabus. Shell ovate, rather stout, whi- 

 tish, more or less marbled with reddish-chestnut, 

 whorls nine to ten, with the plicated striae descending 

 in wrinkles ; aperture somewhat squarely ovate, with 

 the margin rather small, rather produced. 



Pgthia ovata, Pfeiffer, Pro. Zool. Soc. 1854, p. 299. 



Hab. ? 



Chiefly distinguished by a more than usually ovate 

 stoutness of the body- whorl, with smaller aperture, as op- 

 posed to the more pyramidal growth of the species near- 

 est allied to it. 



November, 1860. 



