28 4 



18. Turricula (Costellaria) spicata Reeve. PI. XXIII, fig. 8. 



Reeve. Proc. Zool. Soc. Lond. 1845, p. 55. 



Conch. Ie. Vol. II, Mitra, fig. 291. 



Sowerby. Thes. Conchyl. Vol. IV, Mitra, p. 36, PI. 12, fig. 190; PI. 19, fig. 383. 

 TRYON. Man. of Conch. Vol. IV, p. 175, PI. 52, fig. 487 [fusiformis). 



Stat. 240. Banda. 9 — 45 M. Black sand, coral. 4 Spec. 



Stat. 313. East of Dangar Besar, Saleh-bay. Up to 36 M. Sand, coral and mud. 1 Spec. 



The small radula has a little more than 40 rows of teeth, of which the median ones (M) 

 have a strongly curved base with 8 long cusps, which are nearly equal in length, safe that 

 one of them is slightly abnormal in many rows, the laterals (ij are hooked and rather long, 

 reaching each other in the median line, if the radula is not quite expanded. 



Varying in the development of the second row of white nodules on last whorl, which 

 is quite wanting or scarcely visible or conspicuous in the Siboga-specimens. Reeve mentions it 

 in his text, but in his figure I cannot tracé it. 



19. Turricula (Costellaria) angulosa Klister. 



Küster. Martini-Chemn. Conch. Cab. Ed. II, Vol. V, Volutacea, p. 6$, PI. 12, fig. 8, 9. 



REEVE. Conch. Ie. Vol. II, Mitra, fig. 223. 



Sowerby. Thes. Conchyl. Vol. IV, Mitra, p. 32, PI, 24, fig. 531, 534, 535. 



Tryon. Man. of Conch. Vol. IV, p. 169, PI. 50, fig. 431, 432. 



Stat. 240. Banda. 9 — 45 M. Black sand, coral. 2 Spec. 



According to the 2 specimens, the species seems to vary considerably in the development 

 of the nodules, which in the largest one are only conspicuous on the last whorl whilst the 8 or 9 

 upper ones are rounded, whereas in the smaller young one scarcely 4 of them are not nodulous. 



20. Turricula (Costellaria) mucronata Swainson. 



SWAINSON. Proc. Zool. Soc. Lond. 1835, p, 195. 



REEVE. Conch. Ie. Vol. II, Mitra, fig. 125, fig. 132 {fusiformis non Kien.). 

 Sowerby. Thes. Conchyl. Vol. IV, Mitra, p. 36, PI. 19, fig. s~j — 380. 

 Tryon. Man. of Conch. Vol. IV, p. 174, PI. 51, fig. 475—478. 



Stat. 240. Banda. 9 — 45 M. Black sand, coral. 2 Spec. 

 I think Tryon is rïght in uniting M. fusiformis Rve. non Kiener to this species. The 

 Siboga-specimens agree with that figure and with specimens from the Andaman-isles. 



21. Turricula (Costellaria) nodilirata. A. Adams. 



A. Adams. Proc. Zool. Soc. Lond. 185 1, p. 136. 



Sowerby. Thes. Conchyl. Vol. IV, Mitra, p. 26, PI. 19, fig. 385. 



TRYON. Man. of Conch. Vol. IV, p. 174, PI. 52, fig. 480 {mucronata pars). 



Stat. 2i7- Sailus ketjil, Paternoster-islands. Up to 27 M. Coral and coralsand. 1 Spec. 

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



The specimen from Stat. 37 is very young, but perfectly agrees with the upper whorls 

 of the other one. 



33 



