122 PULMONATA. 



with the margins joined by a white callus, the columellar margin 

 declivous, rather thickened, dilated and reflected over the perfo- 

 ration. Height 45, greatest breadth 76, least breadth 63 mi\\.{Pfr.) 



Helix Brookei, Adams Sf Reeve,V. Samarang, Moll. 60. 1. 15. f. 4. 



Reeve, Conch. Icon. n. 377- t. 7^. 



Pfr. Ic. n.870. t. 135. f. 1, 2; Mon. Suppl. 52. 

 Helix gigas, Pfr. in Z.f. M. 1850, p. 81. 

 Hab. Borneo. 



130. Nanina regalis. 



Shell perforate, reversed, conoidally depressed, keeled, with 

 crowded vmdulate striae and granidations, finely banded or uni- 

 form ; spire conoidal, rather pointed ; whorls six, nearly flat, 

 slowly increasing, the middle ones obliquely undate, the last not 

 descending, with a sharp keel, which is compressed from the 

 lower side, shining, convex, very minutely decussated beneath, 

 excavated in the centre, with the spiral striae obsolete near the 

 perforation ; aperture oblique, rather secm-iform ; peristome 

 sharp, basal margin arched, sinuated towards the umbilicus, co- 

 lumellar margin very slightly reflected. Height 13, greatest 

 breadth 27, least breadth 25 mill. {Pfr.) 



Hehx regalis, Benson in Ann. &• Mag. Nat. Hist. Mai-ch 1850, 

 p. 215. 



Pfr. Mon. Suppl. 52. 



a. With the undulate ribs scarcely conspicuous ; colour a dirty 

 wine-red, with a whitish-green band, which is bordered with 

 blackish-chestnut, on the suture and on the keel ; periomphalum 

 whitish-yellow, surroimded by a blackish band. 



Helix ■sattata, Adams §• Reeve, Voy. Samarang, Moll. 60, t. 15 . 



f. 7 (not Miill.). 

 Helix regalis. Reeve, Conch. Icon. n. 529. t. 96. 

 P/r. Jc. n. 915. t. 141. f. 5, 6. 



/3. Uniformly purplish-brown, with more distinct undulate ribs. 



Hehx regaUs, var., Reeve, t. 80. f. 426. 



Pfr. Jc. t. 141. f. 7, 8. 

 Hab. Sarawak and Balarabangan, Borneo {Taylor). 



131. Nanina glutinosa. 



Shell perforate, conoidally lenticular, keeled, thin, glutinous- 

 shining, of a light chestnut-colour, marked with very minute 

 spiral lines ; spii-e conoidal, rather pointed ; suture scai-cely im- 

 pressed, obscurely bordered ; whorls six, rather flat, the last not 



