550 FUNAFUTI ATOLL. 



Caecum vertebrale off Tutaga in 45-52, 50-60, and 200 

 fathoms; off Beacon Islet (Funamanu), at 150; and in 36 fathoms 

 north; and 36 fathoms N. 30 W. of Pava. This is evidently from 

 jts abundance a native of the deeper water. Some of the examples 

 from 150 and 200 fathoms have a few brown blotches on the shell. 



Ccecum gulosum dredged at every station with C, vertebrale. 

 Columbella varians3Q fathoms N. 30 W. of Pava. 

 Marginella iota 36 fathoms N. 30 W. of Pava, off Beacon Islet 

 (Funamanu) in 150, and off Tutaga in 45-52 and 00 fathoms. 



Marginella sandwicensis 150 fathoms off Beacon Islet (Funa- 

 manu). 



Oiivella simplex 36 fathoms N. of Pava. 



Those species which are either new to science or have not been 

 yet recorded from Funafuti are as under. 



CEPHALOPODA. 



OCTOPUS TONGANUS, Hoyle. 

 Hoyle, Chall. Rep., Zool., xvi., 1886, p. 83, pi. viii., figs. 1, 2. 



One male specimen was procured in the lagoon by Mr. A. E* 

 Finckh. The species has only been found before at Tonga. 



POLYPLACOPHERA. 



TONICIA sp. 

 (Fig. 59.) 



A single mutilated 

 median valve of a Chiton 

 was obtained at a depth 

 of 150 fathoms off Beacon 

 Islet (Funamanu). Such 

 features as it has, point 

 to an affinity with T. 

 Fig. 59. confossa, Gould. The 



rarity of this group in 



the Central Pacific renders the occurrence of this fragment note- 

 worthy. Only six species were known to Harper Pease from the 

 Central Pacific. In his last paper he stated that, " The absence 

 of Chitonidfe from Polynesia has been noticed by authors as a 

 remarkable fact, abounding as they do* in the surrounding pro- 

 vinces, especially on the west coast of America, at Australia and 

 New Zealand."! 



* The Chitons not the authors. 



t Pease Am. Journ. Conch., vii., 1872, p. 194. 



