54 THE VOYAGE OF H.M.S. CHALLENGER. 



Monodonta labio, Tapparone-Canefri, "Magenta" Malacologia, p. 61. 

 Trochus (monodonta) labio, von Martens, Moll. Mauritius, &c, p. 296. 



„ labio, Fischer in Fuener's Iconog., p. 223, sp. 116, pi. lxxiii. fig. 1, and pi. lxxiv. tig. 4. 

 Monodonta labio, Brazier, " Chevert " Moll., Proc. Linn. Soc. New South Wales, vol. ii. p. 43, No. 9. 

 Trochus (monodonta) labio, E. A. Smith, "Alert" Collections, p. 74, No. 94, and p. 505, No. 93. 



Station 187. September 9, 1874. Lat. 10° 36' S., long. 141° 55' E. Near Cape 

 York, North Australia. 6 fathoms. Coral mud. 

 May 14, 1875. Oosima, Japau. 



Habitat. — From Senegal (Adanson) and Natal (Krauss) throughout the Indian Ocean 

 (v. Martens) to Japan (Lischke) and North Australia (Brazier). 



Adanson (loc. cit.) says of this species, " Je l'ai trouvtfe fort rarement aux environs du cap Manuel." 

 It is at least remarkable that nobody else has found it on the Atlantic coast of Africa. 



10. Trochus {Ziziphinus) decoratus, Phil. 



Trochus decoratus, Philippi, Zeitschr. f. Malak., 1846, p. 102, No. 19. 



,, ,, Philippi, Conch. Cab. (ed. Kuster), p. 59, sp. 55, pi. xiii. fig. 1. 



Ziziphinus decoratus, A. Adams, Monog. Trochid., Proc. Zool. Soc. Lond., 1851, p. 165, sp. 28. 



„ „ Reeve, Conch. Icon., vol. xiv. pi. iv. fig. 28, and pi. v. fig. 36. 



„ „ Angas, Addit. Port Jackson Moll., Proc. Zool. Soc. Lond., 1877, p. 188, No. 127. 



Trochus (calliostoma) decoratus, E. A. Smith, "Alert" Collections, Moll., p. 72, No. 90. 



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



Habitat. — Port Jackson (Angas), Brisbane (Brit. Mus.). 



11. Trochus [Ziziphinus) exasperatus, Pennant. 



Chemnitz, Conch. Cab., vol. v. p. 30, pi. clxii. fig. 1529, a, b. 

 Trochus exasperatus, Pennant, Brit. Zool., vol. iv. p. 126. 



„ erythroleucus, Gmelin, Syst. Nat., 13th ed., p. 3581 (teste Fischer). 



,, conulus, Da Costa, Conch. Brit., p. 40, pi. ii. fig. 4. 



„ exiguus, Pulteney, Dorset. Cat., p. 44. 



„ erenulatus, Brocchi, Conch, foss. Subapp., p. 354, pi. vi. fig. 2. 



,, minutus, Dillwyn, Cat., vol. ii. p. 797, No. 91 (excluding the synonyms). 



,, erythroleucus, Lamarck, Anim. s. vert., vol. vii. p. 30, and (ed. Desh.) vol. ix. p. 151, No. 69 



(Trochus minutus, note by Deshayes). 

 ,, pyramidatus, Lamarck, Anim. s. vert., vol. vii. p. 30, and (ed. Desh.) vol. ix. p. 150, No. 68. 

 „ ,, Delessert, Recueil, pi. xxxvi. fig. 2. 



,, exiguus, Wood, Lid. Test. (ed. Hanley), p. 149, pi. xxix. fig. 91. 

 „ matonii, Payraudeau, Moll, de Corse, p. 126, pi. vi. figs. 5, 6. 



„ erenulatus, Philippi, Enuru. Moll. Sicil., vol. i. pp. 176, 184, and vol ii. pp. 150, 154. 

 „ „ Philippi, Conch. Cab. (ed. Kuster), p. 69, sp. 68, pL xiii. figs. 17, 18, 20, 22. 



,, exasperatus, Philippi, Conch. Cab. (ed. Kuster), p. 92, sp. 99, pi. xv. figs. 1, 15. 

 „ exiguus, Forbes and Hanley, Brit. Moll., vol. ii. p. 505, pi. lxvi. figs. 11, 12. 



