156 



Varying much in size; of the 8 probably adult specimens from Stat. 261, with well- 

 developed outer lip and a varix on the opposite side of the body-whorl, the largest specimen 

 has a length of 22 Mill, the smallest of only 10 Mill.; the full-grown intermediate specimens 

 have the length of 12, 15^4, ^7^/^, 18 and 20^3 Mill. 



3. Rimella Tyleri H. & A. Adams. PI. XV, fig. 5; PI. XVI, fig. i. 



H. & A. Adams. Proc. ^ool. Soc. Lond. 1863, p. 428. 

 Tryon. Man. of Conch. Vol. VII, p. 119. 



Stat. 4. Djankar (Java). 9 M. Coarse sand. 10 Spec. 



Stat, -ill)- Bay of Pidjot, Lombok. 22 M. Mud, coral and coralsand. i Spec. 



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



Stat. 50. Bay of Badjo, West coast of Flores. Up to 40 M. Mud, sand and shells, i Spec. 



Stat. 71. Makassar and surroundings. Up to 32 M. Mud, sand with mud, coral. 3 Spec. 



Stat. 213. Saleyer. Up to 36 M. Coralreefs, mud and mud with sand, i Spec. 



Stat. ? 10 Spec. 



This species is also very variable in size, the smallest specimen from Stat. 4 being only 

 14 Mill, in length, the largest from the same locality 23 Mill., this latter being only surpassed 

 by a specimen from Stat. ? measuring 25 Mill. The operculum is serrate, as in R. cancellata-^ 

 as far as I know this species has not been figured before. 



The radula which, as far as I am aware, was not yet known is very small, its length 

 is about ''/j, its breadth ^s of a Mill., with about 35 transverse rows. The rhachidian tooth (R) 

 is broadly rounded in front, contracted behind, with a cusp bearing one moderately large central 

 denticle and about 6 smaller ones on each side, the laterals (i) are strongly transversely elongate 

 with a simple reflected margin, terminating in a sharp point towards the centre of the radula, 

 the uncini (U) are long and slender, strongly curved, with a few indistinct denticles. The general 

 appearance of the radula is much the same as that of the preceding genus, as far as may be 

 judged from one radula of each, the chief difference being the smooth margin of the laterals, 

 which are provided with many denticles in Rostellaria. 



Terebellum Klein. 



I. Terebellum terebellum Linne. 



LiNNE. Syst. Nat. Ed. X, p. 718, N" 284. 



RUMPH. Amb. Rariteitkamer, p. loi, PI. 30, fig. S. 



KlENER. Coq. Viv. Vol. I, Terebellum, p. 2, PL i, fig. i {subulatum). 



Reeve. Conch. Ic. Vol. XVI, Terebellum, fig. i [punctatum). 



Tryon. Man. of Conch. Vol. VII, p. 131, PI. 11, fig. 27 — 30 [subulatum). 



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



Stat. 37. Sailus Ketjil, Paternoster-islands. Reef, i Spec. 



Stat. 47. Bay of Bima, near South fort. 55 M. Mud with patches of fine coralsand. 4 Spec. 



Stat. 64. Kambaragi-bay, Tanah-Djampeah. 32 M. Coral, coralsand. i Spec. 



Stat. 71. Makassar and surroundings. 27 — 32 M. Mud, sand with mud, coral. 2 Spec. 



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



Stat. 258. Tual, Kei-islands. 22 M. Lithothamnion, sand and coral, i Spec. 



Stat. 299. Buka-bay, Rotti-island. Up to 36 M. Mud, coral and Lithothamnion. 2 Spec. 



Stat. 313. East of Dangar Besar, Saleh-bay. Up to 36 M. Sand coral and mud. 7 Spec. 



