84 Bulletin Vanderbilt Marine Museum, Vol. VII 



Family: AMPHINOMIDAE 



Genus: AMPHINOME Brugiere 



Amphinome rostrata (Pallas) 



Plate 27 



Type : Pallas states of his type : "In ultimo Orientis Oceano 

 habitat & Amboyna maxime adfertur." 



Distribution : This species has been repeatedly recorded from 

 the littoral zone of the tropical areas of the Pacific, Indian and 

 Atlantic Oceans and has likewise been taken on driftwood in these 

 areas many times. 



Material examined: One specimen, broken, 54 millimeters 

 long, taken in coral, at Raiatea Island, on the reef. Society Islands, 

 August 21, 1931. Two specimens, measuring respectively about 

 40 and 48 millimeters long, were collected on the reef, at Falcon 

 Island, Palm Islands, Queensland, Australia, by the '*Alva." 



Remarks : These three specimens, taken at localities so widely 

 separated, agree in all details of diagnostic characters of the 

 aborescent branchia, the structure of the setae and other essen- 

 tials with the accepted descriptions and illustrations of the species. 



The broken specimen from Society Islands has eighty-two 

 somites. The smaller Australian specimen has fifty-eight somites, 

 while the larger one has sixty-five somites. 



Amphinome rostrata, M'Intosh, W. C, Rept. Voy. H. M. S. "Chal- 

 lenger" Zool., 1885, vol. XII, Annelida, p. 21, pi. 1-a, fig. 16.— 

 Fauvel, p. a., Mem. Indian Mus. Calcutta, 1932, vol. XII, 

 No. 1, p. 44 (with synonymy). 



Amphiyiome pallasii, Quatrefages, A. de. Hist. Nat. Annelides 



et d 'Eau douce, Annelides et Gephyriens, 1865, p. 314. 

 Pleione tetraedra, Milne Edwards, A., in Cuvier, G. J. Regne 



Anim. Illustre Annelides, 1849, pi. 7, bis, fig. 1. 

 Pleione vagans, Savigny, de, J. C, Syst. des Annelides, in Descript. 



Egypte Hist. Nat., 1809, (1822), t. XXI, pt. 3, p. 60, Paris. 

 Amphinome vagans, de Blainville, H. M. D., Diet. Sci. Nat., 



1828, t. LVII, p. 451.— Chamberlin, R. V., Mem. Mus. Comp. 



Zool., 1919, vol. XLVIII, p. 27. 



