89 



19 1 8. Vulsella vidsella Hedley, Journ. Roy. Soc. N. S. Wales, LI, Suppl., M y. 



1927. Vulsella vulsella Tomlin, Trans. Linn. Soc. London (Zool.), XXII, p. 302. 



1928. Vulsella lingidata Faustino, Summary Philippine Marine Freshw. Moll., p. 28. 



1929. Vulsella vulsella Dautzenberg, Faun. Colon. Français., III, p. 565. 



1930. Vidsella vidsella Thiele, Faun. Sùdwest. Austral., V, p. 590. 



In the paper cited, Smith has dealt with the question of the synonymy of V. vulsella 

 in détail, while for accounts of the anatomy of this species référence may be made to the works 

 of Vaillant ^), Menegaux ") and Pelseneer ^). 



The single shell in the "Siboga" collection which I assign to this species, agrées with 

 spécimens from the Red Sea and other localities in the British Muséum (Nat. Hist.), London, 

 It is a young shell 32 mm. long and is of a livid colour with traces of vertical brown stripes. 



Distribution : — V. vulsella is widely distributed in the Indo-Pacific and is also known 

 from the Red Sea. 



The single shell in the "Siboga" collection was collected near Macassar (St. 71). 



2. Vulsella minor Roding. (Plate II, figs. 46 — ^49). 



1782. Der Kleine Bartkneiper Chemnitz, Conch.-Cab., VI, p. 23, pi. II, figs. 8, 9. 

 1798. Vulsella minor Roding, Mus. Boltenianum, p. 156. 



1857. Vidsella minor and V. spongiarum Adams, H. & A., Gen. Rec. Moll., II, p. 524. 



1858. Vulsella pholadif or mis, V. attenuata and V. spongiarum (Reeve non Lamarck), Reeve, 



Conch. Icon., XI, Vulsella, pi. I, fig. r, fig. 5, pi. II, fig. 15. 



1884. Vulsella ililima de Gregario, Bull. Soc. Malacol. Ital., X, p. 69, pi. V, fig. 5. 



1885. Vulsella Assabensis de Gregario, Bull. Soc. Malacol. Ital., XI, p. 121. 



1886. Vulsella pholadif ormis and V. attenuata Cooke, Ann. Mag. Nat. Hist., (5) XVII, pp. 61, 62. 

 1890. Vulsella attenuata, V. spongiarum and V. pholadif or mis Clessin in Martini-Chemn. Conch.- 

 Cab. (N. F.), VIII (3), Malleacea, pp. 20, 24, pi. V, figs. i, 2, 3, pi. VII, fig. 8. 



19 10. Vulsella vulsella Smith (nec Linn.), Ann. Natal Mus., II, p. 213. 



191 1. Vulsella attenuata Smith, Proc. Malacol. Soc. London, V, p. 309. 



19 19. Vulsella attenuata Odhner, Arkiv. Zool., XII, n". 6, p. 4. 



1929. Vulsella attenuata^ Dautzenberg, Faun. Colon. Français., III, p. 565. 



From an examination of the collections before me I hâve no doubt that the Chemnitzian 

 shells from the Red Sea figured in the Conch-Cab. and on which Roding's species was based, 

 are specifically identical with what was described later by Reeve under the name V. attenuata. 

 I am also of opinion that V. pholadiformis of Reeve is, as was suggested by Smith, based on 

 an abnormal young shell of this species. 



Distribution : — V. minor has so far been recorded from Suez, the Red Sea, Natal 

 and Madagascar. 



In the "Siboga" collection it is represented by young spécimens collected in the Bay of 

 Labuan Tring, west coast of Lombok (St. 19), Bay of Badjo, west coast of Flores (St. 50), 

 Anchorage off Sawan, Siau Island (St. 125), Anchorage off Lirung, Salibabu Island (St. 133) 

 and Buka or Cyrus Bay (St. 299). 



i) Vaillant, L. — L'Institut, p. 265 (1865), Compt. Rend. Acad. Sci. Paris, LXVI, pp. 1122— 1125 (1868) and Ann. Se. 

 Nat. (Zool.), IX, p.-28T— 310, pi. XII (i868). 



2) Menegaux, A. — • Réch. Circulation Lamellibranch., pp. 44 — 48, figs. 8 — 11 (1890). 



3) Pelseneer, P. — "Siboga" Lamellibranches (Anat.), pp. 26 — 27 (191 1). 



SIBOGA-EXPEDITIE Lille. 12 



