REPORT ON THE GASTEROPODA. 65 



23. Trochus (Leiopyrga) picturatus (H. & A. Adams). 



Leiopyrga picturata, II. & A. Adams, Ann. and Mag. Nat. Hist., ser. 3, vol. xi., 1863, p. 19 (not 

 Ziziphinus picturatus, A. Ad.) 



„ „ Angas, South Austr. MolL, Proc. Zool. Soc. Lond., 1865, p. 181, No. 165. 



,, „ Angas, Port Jackson Moll., Proc. Zool. Soc. Lond., 1867, p. 216, No. 189. 



Bankivia (Leiopyrga) 2nd urata, E. A. Smith, "Alert" Collections, p. 75, No. 98, pi. vi. fig. c. 



April 17-18, 1874. Port Jackson, Sydney. 2 to 10 fathoms. 

 April 23, 1874. Port Jackson, Sydney. 6 to 15 fathoms. 



Station 163b. June 3, 1874. Lat. 33° 51' 15" S., long. 151° 22' 15" E. Off Port Jack- 

 son, Sydney. 35 fathoms. Hard ground. 



Habitat. — South Australia and Port Jackson (Angas). 



Tryon classes this under Phasianella, with which it has nothing specially to do. As Mr Angas 

 truly remarks, " It has somewhat the aspect of an umbilicated Bankivia with rounded whorls ; " to 

 which I may add that it has also a thin membranaceous Trochus-]ike operculum, but of fewer whorls 

 than usual in the genus. The nacre of the shell is very marked. The mantle of the animal is very 

 large and capacious, but thin. The tentacles are large and very long, strongly ciliated with a long 

 deep posterior channel running down their whole length. The eyes are very minute on the end of 

 rather long and fine tubercles. There are four pedal appendages on the right and three on the left 

 side, and there are also the two head lappets common to Trochus. The teeth are like those of 

 Margarita. 



24. Trochus (Troche-cochlea) colubrinus, Gould. 



Trochus edulis, R. T. Lowe, MS. 



„ crassus, D'Orbigny, Moll, de Canaries (Webb and Berthelot), p. 82, No. 102 (but not of 



" Matton and Rackett," to whom D'Orbigny ascribes the species). 

 (monodonta) colubrinus, Gould, Proc. Soc. Nat. Hist. Bost., vol. iii. p. 107. 

 colubrinus, Gould, Expl. Exped. (Wilkes), Shells, p. 183, pi. xiii. fig. 223. 

 crassus, British Museum (but not of Pulteney). 

 variegatus, British Museum (but not of Anton). 



luctuosus, British Museum (as of Gould, who has, however, no such species). 

 lineatus, M'Andrew, Geog. Distrib. Moll. (Brit. Assoc. Reports for 1851), pp. 13, 16, 25 (but 



not of Da Costa). 

 sajittiferus, Hidalgo, Moluscos Mar. Espafia, pi. lx. figs. 2-7 (but not of Lamarck). 

 citrinus, Fischer in Kiener's Iconog., p. 262, sp. 144, pi. lxxxviii. figs. 1, la (but query 



of Gmelin). 



February 1S73. Shells from the rocks of Santa Cruz, Tenerife. 



Habitat. — Madeira (Gould, Watson), Mogador and the North of Spain (M'Andrew), 

 Cape Verde Islands and Senegal (Fischer). 



(ZOOL. CHALL. EXP. PART XLII. 1885.) Tt 9 



