84 THE VOYAGE OF H.M.S. CHALLENGER. 
Species 1. Pliobothrus symmetricus, Pourtalés, Bull. Mus. Comp. Zool., No. 7 ; 
Deep-Sea Corals, p. 57, pl. iv. figs. 7, 8. Dredged off Florida and Key 
West, in from 98 to 154 fathoms; lat. 24° 16’ N., long. 82° 13’ W., 229 
fathoms, Bull. Mus. Comp. Zool., Harvard, No. 9, vol. v. p. 211. 
Cold Area of North Atlantic, in 500 to 600 fathoms, P. M. Duncan, 
Madreporaria of the “ Porcupine” Expedition, Trans. Zool. Soc., part 5, 
vol, vii. p. 336. 
Off Sombrero Island, Danish West Indies, in 460 fathoms, Challenger, 
Proc. Roy. Soc., No. 170, 1876, p. 548. 
Species 2. Pliobothrus tubulatus, Pourtalés, Deep-Sea Corals, p. 58, pl. iv. fig. 9. 
Off Havana, in 270 fathoms ; lat. 23° 11’ N., long. 82° 23’ W., 292 fathoms, 
Bull. Mus. Comp. Zool., No. 9, vol. v. p. 211. 
(IIL) Genus Errina, Gray, Proc. Zool. Soc., 1835, p. 85 ; Saville Kent, Proc. Zool. Soc., 
1871, p. 282. 
Species 1. Errina aspera, Gray, l.c. Millepora aspera, Esper, Supp. 1, t. xvii. ; 
Lam., vol. 11. p. 202. 
Species 2. Hrrina carinata, Pourtalés, Deep-Sea Corals, p. 39, pl. vi. fig. 5. Off 
Havana, in 270 fathoms; off Havana, 292 fathoms, Bull. Mus. Comp. 
Zool., Harvard, No. 9, vol. v. p. 211. 
Species 3. (2) Errina fissurata, Gray, Proc. Zool. Soc., 1872, p. 742. Described 
from a drawing of the living coral. Specimen lost. Affinities doubtful. 
Dredged in the Antarctic Ocean. 
Species 4. Errina glabra, Pourtalés. Lepidopora glabra, Pourtalés, Deep-Sea 
Corals, p. 40, pl. vii. figs. 8, 9. Off Havana, in 270 fathoms ; off Havana, 
100 to 458 fathoms, Bull. Mus. Comp. Zool., Harvard, No. 9, vol. v. p. 211. 
Species 5. Errina cochleata, Pourtalés. Lepidopora cochleata, Pourtalés, Deep-Sea 
Corals, p. 40, pl. iii. figs. 17-19. Off Havana, in 270 fathoms ; off Havana, 
; 154 and 292 fathoms, Bull. Mus. Comp. Zool., Harvard, No. 9, vol. v. p. 211. 
Species 6. Hrrina dabneyi, Pourtalés. Lepidopora dabneyi, Pourtalés, Deep-Sea 
Corals, pp. 40, 41, pl. vii. figs. 10, 11. Fayal, Azores. Depth (?). 
Species 7. Hrrina labiata, Moseley, Phil. Trans. Roy. Soc., 1878, part 2, p. 448, 
pl. i. fig. 6. Off the mouth of the Rio de la Plata, 600 fathoms ; off the 
Tristan da Cunha group, 90 to 190 fathoms. 
(IV.) Genus Distichopora, Lamarck, Hist. des Anim. sans Vert., t. ii. p. 198. 
Species 1. Distichopora violacea, M.-Edw. and H., Hist. Nat. des Cor., t. 11. p. 451 ; 
M.-Edwards, Atlas, Regne Animal, Zoophytes, pl. Ixxxy. fig. 4, a-c, Island 
of Timor ; Fiji. 
