624 THE VOYAGE OF H.M.S. CHALLENGER, 



September 7, 1874. Torres Strait, North Australia. 3 to 11 fathoms. 



Station 186. September 8, 1874. Lat. 10° 30' S., long. 142° 18' E. Wednesday 

 Island, Cape York. 8 fathoms. Coral mud. 



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

 6 fathoms. Coral mud. 



July 1875. Eeef off Honolulu, Sandwich Islands. 40 fathoms. 



Habitat. — Japan, 2^ to 25 fathoms (Adams). 

 3. Scaliola caledonica, Crosse. 



Scaliola caledonica, Crosse, Journ. de conch., 1870, p. 299, and 1871, p. 200, pi. vi. fig. 3. 



September 7, 1874. Torres Strait, North Australia. 3 to 11 fathoms. 



September 8, 1874. Flinders Passage, Cape York. 7 fathoms. 



Station 186. September 8, 1874. Lat. 10° 30' S., long. 142° 18' E. Wednesday 

 Island, Cape York. 8 fathoms. Coral mud. 



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

 York. 6 fathoms. Coral, sand. 



July 1875. Eeef off Honolulu, Sandwich Islands. 40 fathoms. 



Habitat. — The shore near Noumea, New Caledonia. 



Mr Crosse kindly compared the Challenger specimens with his own types of this species, and 

 writes, May 17, 1881 — " Tres voisin du Scaliola caledonica, Crosse, dont il reproduit a peu pres com- 

 pletement la forme generale et dont il n'est peut-etre bien qu'une varidte" minor. Pourtant il en 

 differe par sa taille au moins du double plus petite et son ouverture proportionnellement un peu 

 moins grande. II y a reellement difference entre les deux formes mais est-elle assez trauchee pour 

 justifier la separation en deux especes ? " 



In the face of such an estimate, the union of the two forms seemed the safest course. The 

 shape is totally unlike that of the two other species already mentioned from the same localities, 

 though of course the superficial resemblance is strong, as it is always apt to be between small allied 

 forms. 



7. Skenea, Fleming, 1828. 

 Skenea subcanaliculata, E. A. Smith. 



Skenea subcanaliculata, E. A. Smith, Aon. and Mag. Nat. Hist., July 1875, ser. 4, vol. xvi. p. 71, 



No. 9. 

 „ „ E. A. Smith, Phil. Trans., 1877, vol. 168 (separate impression), p. 9, pi. ix. 



fig. 15. 

 ,, „ Studer, Fauua Kerguelensland, Archiv f. Naturgesch., 35th year., vol. i. 



p. 129, No. 34. 



January 19-20, 1874. Eoyal Sound, Kerguelen. Shore. 

 Habitat. — Kerguelen Island, 7 fathoms. 



