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



10. Pleurotoma (Surcula) brevicaudata, Eeeve. 



Pleurotoma brevicaudata, Eeeve, Proc. Zool. Soc. Lond., 1843, p. 186. 

 „ „ Reeve, Conch. Icon., vol. i. pi. xv. fig. 126. 



„ „ Weinkauff, Conch. Cab. (ed. Kiister), p. 68, sp. 76, pi. xiv. figs. 5, 6. 



„ (Surcula) brevicaudata, Brazier, " Chevert " Exped. Shells, Proc. Linn. Soc. New South 



"Wales, vol. i. p. 152. 

 „ fascialis (young), Tryon, Manual, vol. vi. p. 169, pi. iv. fig. 45. 



July 29, 1874. Levuka, Fiji. 12 fathoms. 

 Habitat. — Torres Strait, North Australia (Brazier). 



11. Pleurotoma (Surcula) deshaysii, Doumet. 



Pleurotoma deshaysii, Doumet, Magazin de Zool., Moll., 1840, pi. xi. 

 „ „ Reeve, Conch Icon., vol. i. pi. iii. fig. 19 (?) 



„ „ "Weinkauff, Conch. Cab. (ed. Kiister), p. 26, sp. 23, pi. v. fig. 7. 



,, indica, Tryon, Manual, vol. vi. p. 168, pi. vi. fig. 80. 



Station 204b. November 2, 1874. Lat. 12° 46' N, long. 122° 10' E. Off Manila. 

 100 to 115 fathoms. Green mud. 



Habitat. — China (Doumet). 



Dcmmet's is a very beautiful figure, but perhaps of a specimen not fully grown. Does Reeve's 

 figure really represent this species ? It is not like it. Weinkauff's figure in the Conch. Cab. is 

 very unlike both the other figures cited above. Reeve and "Weinkauff erroneously ascribe Doiimet's 

 publication of the species to the year 1834. 



12. Pleurotoma (Surcula) leucotropis, Adams and Eeeve. 



Pleurotoma leucotropis, Adams and Reeve, Voy. " Samarang," p. 40, pi. x. fig. 7. 



oxytropis (not of Sowerby), Eydoux and Souleyet, Voy. "Bonite," vol. ii. p. 620, pi. xliv. 

 figs. 9, 10. 

 „ leucotropis, E. A. Smith, Ann. and Mag. Nat. Hist., 1875, ser. 4, vol. xvi. p. 416, No. 9. 



"Weinkauff, Conch. Cab. (ed. Kiister), p. 28, pi. vi. fig. 3. 

 „ oxytropis, Tryon, Manual, vol. vi. p. 168, pi. iv. fig. 37. 



Arafura Sea, without date or special locality. 



Habitat. — China (Adams and Eeeve), Cochin-China (Eydoux and Souleyet), Matoza 

 Harbour and Oosima Harbour, Japan (E. A. Sm.) 



There has been a considerable inclination shown by several writers to unite this species and 

 Pleurotoma oxytropis, Sow. No one is likely to do this who has true specimens of both species 

 before him. They are very unmistakably different. 



