267 



SOWERBY. Thcs. Conchyl. Vol. IV, Mitra, p. 2, I'l. i, fig. i, 2. 

 Trvon. Man. of Conch. Vol. IV, p. in, IM. 32, fig. 3. 



Stat. 225". Lucipara-island. Reef, i Spec. 



5. JMitra luctuosa A. Adam.s. 



Adams. Proc. Zool. Soc. Lond. 185 1, p. 133. 



SowERBY. Thcs. Conchyl. Vol. IV, Mitra, p. 19, PI. 14, fig. 229; PI. 20, fig. 406. 



Tryon. Man. of Conch. Vol. IV, p. 151, PI. 44, flg. 298. 



Stat. 282. Between Nusa Besi and N.E. -point of Timor. 27 — 54 M. Sand, coral and Litho- 

 thamnion. 2 Spec. 



The specimens are still young and small, they agree however rather well with Sowerby's 

 fig. 406, but are much darker. 



6. Mitra Marioftae Melvill. PI. XXII, fig. 4. 



Melvill. Journ. of Conch. Vol. V, 1888, p. 281, PI. 2, fig. 11. 



Stat. 33. Bay of Pidjot, Lombok. 22 M. and less. Mud, coral and coralsand. i Spec. 



The only specimen of this very fine species is unfortunately not quite adult, a coloured 

 figure has been given, on account of its exquisite beauty. 



7. Mitra incisa Adams & Reeve. 



Adams & Reeve. Voy. Samarang, p. 27, Pi. 10, fig. 31. 



Sowerby. Thes. Conchyl. Vol. IV, Mitra, p. 3, PI. 16, fig. 292, 293. 



Tryon. Man. of Conch. Vol. IV, p. 1 14, PI. 33, fig. 20. 



Stat. 313. East of Dangar Besar, Saleh-bay. Up to 36 M. Sand, coral and mud. 20 Spec. 



8. Mitra Mariae A. Adams. PI. XXIII, fig. 2. 



Adams. Proc. Zool. Soc. Lond. 185 1, p. 140. 

 Smith. Proc. Zool. Soc. Lond. 1878, p. 813, PI. 50, fig. 14. 

 Tryon. Man. of Conch. Vol. IV, p. 114, PI. 33, fig. 21 [incisa). 

 Melvill. Proc. Mai. Soc. Lond. 1897, p. 168, PI. 13, fig. 8. 



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



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



I can quite agree with Mr. Smith's view (1. c.) after comparing this and the preceding 

 species, that they can be separated; amongst the rather numerous specimens o{ incisa, I found 

 not one that could be taken for M. Mariae. The largest specimen from Stat. 313, having a 

 length of 23 Mill, is quite fullgrown, with a well developed, peristome, and though the words 

 of Adams: "labro intus sulcato" may be exaggerated, the crenulations are visible also on part 

 of the inner surface of lip, especially towards the base. 



The radula has 32 or 33 rows of teeth ; the base of the median tooth (M) is nearly straight 



