(528 
THE VOYAGE OF H.M.S. CHALLENGER. 
Tongatabd. 
Xatica (Mamma) aurantia, Lamarck. Obtained at no other locality by the 
Challenger. Recorded from Australia and Red Sea. 
Fossil — shores of Red Sea. 
Amalthea australis, Lamarck. Obtained at no other locality by the Challenger. 
Recorded from Australia and Philippines. 
Caecum s< /amentum, var. arcuata, de Folin. One specimen; obtained also at Tahiti, 
20 fathoms. The species obtained also at Sandwich 
Islands, 40 fathoms. Recorded from Mauritius. 
„ exile, n.sp. One specimen ; obtained at no other locality. 
„ , two other species undetermined. 
Eulima sp. (?). 
Mucronalia xanthias, n.sp. Obtained also at Stations 186 and 212, 8 to 20 fathoms. 
Cei'ithium ( Vertagvs) asperum (Liun<i). Obtained also at Fiji. Recorded from 
Indian and Pacific Oceans. Fossil — shores of 
Red Sea. 
„ ( „ ), n.sp. (?). 
Bittium perparvulum, n.sp. Obtained also at Station 186, Torres Strait, and 
Sandwich Islands, 7 to 40 fathoms. 
Itissoa sp. (?). 
„ (?) sp. 
Scaliola hello, Adams. Obtained also at Stations 185, 186, 187, Torres Strait, and 
Sandwich Islands, 3 to 155 fathoms. Recorded from Japan. 
Actnou Jlummeus (Gmclin). Obtained also at Station 188 and Fiji, 28 and 
12 fathoms. Recorded from Indian and Pacific Oceans. 
Nudirranchiata (Bergh, Zool. pt. 26). 
Platydoris eurychlamys, Bergh. One specimen ; obtained also at Philippines, 
10 fathoms. Recorded from Philippines. 
Ch.phalopoda (Hoyle, Zool. pt. 44). 
Octopus tonganus, n.sp. Three specimens; obtained at no other locality. 
PoLYZOA (Busk, Zool. pts. 30 and 50). 
MemJjranipora alhida, Hi neks (?). Obtained also at Station 75. 
Rctepora npiculata, n.sp. Obtained at no other locality. 
,, producta, n.sp. Obtained also at Philippines, 10 fathoms. 
Mucronella guadrata, n.sp. Obtained at no other locality. 
Idmoncu rodiat s (Lamarck). Obtained also at Sandwich Islands, 20 to 40 fathoms. 
Recorded from Australian seas, New Zealand, &c. 
