depth may be the true one, as the depth of the two localities does not differ considerably. 

 This species is remarkable for its pagodaeform shape, caused by the great contrast between 

 the upper and lower part of whorls. 



12. Drillia varicosa Reeve. 



Reeve. Proc Zool. Soc. Lond. 1843, p. 187. 



Conch. Ic. Vol. I, Pleurotoma, fig. 141. 



Weinkauff. Martini-Chemn. Conch. Cab. Ed. II, Vol. IV, Pleurotoma, p. 85, PI. 18, fig. 6, 11. 

 Tryon. Man. of Conch. Vol. VI, p. 205, PL 12, fig. 17. 



Stat. 123. North-bay, Biaru-island. 36 — 27 M. Stone and Lithothamnion-bottom. i Spec. 



Stat. 133. Lirung, Salibabu-island. Up to 36 M. Mud and hard sand, i Spec. 



Stat. 313. East of Dangar Besar, Saleh-bay. Up to 36 M. Sand, coral and mud. 2 Spec. 



The specimens are not quite adult, those from Stat. 123 and 133 are moreover bleached, 

 however they agree with the upper whorls of more complete specimens. 



13. Drillia sinensis Hinds. 



Hinds. Proc. Zool. Soc. Lond. 1843, p. 38. 



Reeve. Conch. Ic. Vol. I, Pleurotoma, fig. 153. - 



Weinkauff. Martini-Chemn. Conch. Cab. Ed. II, Vol. IV; Pleurotoma, p. "jj, PI. 16, fig. 5. 



Tryon. Man. of Conch. Vol. v'l, p. 201, PI. 11, fig. 84. 



Stat. 2. Madura-strait. 56 M. Grey mud with some radiolariae. i Spec. 



Stat. 51. Madura-bay. 69 — 91.M. Fine grey sand; coarse sand with shells and stones. 2 Spec. 



Stat. 71. Makassar and surroundings. Up to 32 M. Mud, sand with mud, coral, i Spec. 



Stat. 'J']. Borneo-bank. 59 M. Fine grey coralsand. i Spec. 



Stat. 153. o'^3'.8N., 130° 24'. 3 E. Bougainville-strait. 14 M. Fine and coarse sand with dead 



shells. I Spec. 

 Stat. 162. Between Loslos and Broken-islands. West of Salawatti. 18 M. Coarse and fine 



sand with clay and shells, i Spec. 

 Stat. 205. Lohio-bay, Buton-strait. 22 M. Sandy mud. i Spec. 



Stat. 260. Near North point of Nuhu Jaan. 90 M. Sand, coral and shells, i Spec. 

 Stat. 285. South coast of Timor. 34 M. Limit between mud and coral. 3 Spec. 

 Stat. 313. East of Dangar Besar, Saleh-bay. Up to 36 M. Sand, coral and mud. 3 Spec. 



Varying in colour from yellowish to more dark red-brown, but quite agreeing in sculp- 

 ture, the specimen from Stat. 162 is a very fine colour-variety, with a white zone at the angle, 

 below the periphery of last whorl and a narrower one on the canal. The quoted figures are 

 not very satisfactory, still less so the synonymy given by Tryon, who throws together even 

 very different forms. The specimens from Stat. 2 and 153 are young and dead and could only 

 be identified with moderate certainly by comparison with the upper whorls of adult ones. 



14. Drillia Aesoptis n. sp. PI. XXVI, fig. 6. 



Stat. 1 14. Kwandang-bay-entrance. 75 M. Hard sand, very fine, i Spec. 



Stat. 116. West of Kwandang-bay-entrance. 72 M. Fine sand with mud. 3 Spec. 



Shell fusiform, with long, acute spire, yellowish-brown, alternating with red-brown. Whorls 



46 



