4o6 

 Drillia Gray. 



I. Drillia cagayanensis Reeve. 



Reeve. Proc. Zool. Soc. Lond. 1846, p. 4. 



— ■ — Conch. Ic. Vol. I, Pleurotoma, fig. 329. 



WeinkauFF. Martini-Chemn. Conch. Cab. Ed. II, Vol. IV, Pleurotoma, p. 183, PI. 36, fig. 3. 



Tryon. Man. of Conch. Vol. VI, p. 180, PI. 11, fig. 79. 



Stat. 285. Near South coast of Timor. 34 M. Limit between mud and coral. Lithothamnion. 

 I Spec. 



I owe the identification of this specimen to Mr. Smith, who pronounces it to be a very 

 fine example of cagayanensis -^ it is much larger than Reeve's specimen, being 25 Mill, in lenght, 

 for though Reeve's figure has the same length, it is according to text lYo times magnified, 

 mereover it is more elongated, the tubercles of the upper part of ribs are less conspicuous, the 

 colour is yellowish-white, with traces of red-brown spots near the aperture, especially one rather 

 large blotch below the suture, at some distance from the sinus. This species belongs to the 

 section Brachytoi7ta, often written Brachystoma^ the first orthography being employed by Tryon 

 on page 155, the second on page 176 of his Manual; Boettger (Nachrichtsbl. d. D. Mai. 

 Gesellsch. 1895, p. 6) says Brachystoma^ Cossmann (Essai de Paleoconchologie, part II, pag. 62) 

 Brachytoma non Brachystoma. A worse evil is that the limits of the sections are so ill-defined, 

 that no two authors agree in referring the species to one section or to another, under such 

 circumstances I thought it better not to quote them at all. 



2. Drillia interrupta Lamarck. 



Lamarck. An. s. vert. Ed. II, Vol. IX, p. 347. 



Kiener. Coq. Viv. Vol. IV, Pleurotoma, p. 32, PL 12, fig. 2. 



Reeve. Conch. Ic. Vol. I, Pleurotoma, fig. 51. 



WeinkaUFF. Martini-Chemn. Conch. Cab. Ed. II, Vol. IV, Pleurotoma, p. 129, PI. 29, fig. 1,4. 



Tryon. Man. of Conch. Vol. VI, p. 181, PL 10, fig. 68, 76. 



Stat. 240. Banda. 9 — 45 M. Black sand, coral, Lithothamnion. 5 Spec. 



This species, according to Boettger (1. c, p. 7), should be P. vibicina of Helbling. 



3. Drillia jiavidtila Lamarck. 



Lamarck. An. s. vert. Ed. II, Vol. IX, p. 346. 



Kiener. Coq. Viv. Vol. IV, Pleurotoma, p. 30, PL 6, fig. 2. 



Reeve. Conch. Ic. Vol. I, Pleurotoma, fig. 66. 



Weinkauff. Martini-Chemn. Conch. Cab. Ed. II, Vol. IV, Pleurotoma, p. 45, PL 10, fig. i, 2. 



Tryon. Man. of Conch. Vol. VI, p. 177, PL 10, fig. 56. 



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



Stat. 260. Near north point of Nuhu Jaan, Kei-islands. 90 M. Sand, coral and shells, i Spec. 



As both specimens are young, dead shells, not very typical, I need not say that they 

 are rather doubtful. 



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