20J 



2. Natica mozaica Sowerby. 



SOWERBY. Thes. Conch. Vol. V, Natica, p. 92, PI. IX, fig. 133, 134. 

 TRYON. Man. of Conch. Vol. VIII, p. 19, PI. 3, fig. 51, 52. 



Stat. 240. Banda. 9 — 45 M. Black sand, coral. 1 Spec. 



The Siboga-specimen agrees in most parts with Sowerby's description and figure, but 

 the umbilicus is not so quite covered, as it ought to be, according to the figure of the front 

 view. This may be due to the youth of the specimen, or the figure may be less accurate. 

 Some doubt remains about this identification. 



o- 



Natica chincusis Lamarck. 



LAMARCIC. An. s. vert. Ed. Desh. Vol. VIII, p. 644. 



RUMPH. Amb. Rariteitkamer, p. 76. PI. 22, fig. C. 



PHILIPPI. Martini-Chemn. Conch. Cab. Ed. II, Vol. II, Natica, p. 19, PI. 2, fig. 15—18. 



REEVE. Conch. Ie. Vol. IX, Natica, fig. 182. 



Stat. 43. Pulu Sarassa, Postillon-islands. Up to 36 M. Coral. 1 Spec. 



Stat. 47. Bay of Bima, near South fort. 55 M. Mud with patches of fine coralsand. 1 Spec. 



Stat. 80. Borneo-bank. 50 — 40 M. Fine coralsand. 1 Spec. 



In the specimen from Stat. 43, the colour-pattern has a tendency to form brown streaks, 

 but shape and sculpture of the shell and the funiculum are the same, that from Stat. 47 is 

 very young with only 2 rows of brown spots. 



4. Natica malicsicnsis Dufo. 



DUFO. Arm. Sciences. Nat. Vol. XIV, 1840, p. 193. 



PHILIPPI. Martini-Chemn. Conch. Cab. Ed. II, Vol. II, Natica, p. 121, PI. 17, fig. 7. 



Reeve. Conch. Ie. Vol. IX, Natica, fig. 58 [maheensé). 



TRYON. Man. of Conch. Vol. VIII, p. 20, PI. 3, fig. 56 (maheensis). 



Stat. 260. Near Nuhu Jaan, Kei-islands. 90 M. Sand, coral and shells. 2 Spec. 



5. Natica arachnoidca Gmelin. 



Gmelin. Syst. Nat. p. 3674. 



PHILIPPI. Martini-Chemn. Conch. Cab. Ed. II, Vol. II, Natica, p. 25, PI. 3, fig. 18, 19; PI. 15, fig. 18. 



Reeve. Conch. Ie. Vol. IX, Natica, fig. 56 {Raynaudiana). 



TRYON. Man. of Conch. Vol. VIII, p. 20, PI. 3, fig. 57 [Raynoldiand). 



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



I have foliowed the views of Philippi and other authors, in applying the name arach- 

 noidea for this species, this has been done in recent time by Hidalgo (Cat. de los Mol. Test. 

 de las islas Filipinas, Joló y Marianes, 1904 — 05, p. 157). 



6. Natica solida Blainville. 



Blainville. Manuel de Malac. PI. i6bis, fig. 8. 



RUMl'H. Amb. Rariteitkamer, p. 76, PI. 22, fig. E. 



PHILIPPI. Martini-Chemn. Conch. Cab. Ed. II, Vol. II, Natica, p. 27, PI. 3, fig. 12, 23 {cinnamomca). 



99 



