MADREPORA. 99 
Indo-Pacific Ocean: Red Sea, Rodriguez, Ramesvaram, China Sea, New Holland, 
Great-Barrier Reef, Fiji, Tahiti. 
Var. vasiformis. 
a. Aden. Major Yerbury [P.]. 87. 12. 1]. 19. 
b-d. Rodriguez. Royal Society [P.]. 76. 5. 5. 102, 105 & 108. 
e. Naples! P. de la Garde, Esq. [P.]. 93. 4. 7. 140. 
f. Tizard Bank. H.M.S. ‘Rambler’ 989.9. 24.119. (=. 
flabelliformis, B.-Smith.) 
gy: ? Mrs. W. H. Ince [P.]. 82. 11. 16. 1. 
h. Wreck Bay, Great-Barrier Reef. J. B. Jukes, Esq. [P.]. 46. 7. 30. 19, 
i, Blackwood Bay. J. B. Jukes, Esq. [P.]. 45. 8. 12. 11. 
Var. hemispherica. 
a. Red Sea. R. McAndrew, Esq. [P.]. 93. 4. 7. 162. 
b. Great-Barrier Reef. Saville-Kent Coll. 92. 6. 8. 305. 
c. Fiji. H.M.S. ‘Challenger.’ 86. 12.9. 248. (= M. ramiculosa, 
Quelch.) 
Var. corymbiformis. 
a. Ramesvaram. Madras Museum. 81. 11. 25. 11. 
b. ? Ramesvaram. ? Madras Museum. 93. 4. 7. 128. 
Gs ? Purchased. 47. 1. 1. 10. 
Var. cespito-tabulata. 
a. Red Sea. Dr. Klunzinger [C.]. 86. 10. 5. 18. 
b. Wreck Bay, Great-Barrier Reef. J. B. Jukes, Esq. [P.]. 46. 7. 30. 14. 
c. Rocky Island. Saville-Kent Coll. 92. 6. 8. 313. 
? 98. 4. 7. 109. 
d. ? 
91. Madrepora cytherea. 
Madrepora cytherea, Dana, Zoophytes, p. 441, pl. xxxil. fig. 3; M.-Edwards & Haime, Coralliaires, t. i11. 
p. 157; Verrill, Bull. Mus. Comp. Zool. 1864, vol. 1. p. 42; Klunzinger, Korallenth. d. roth. 
Meeres, Th. ii. p. 25, pl. ii. fig. 4, pl. iv. fig. 2, pl. ix. fig. 20; Mébius, Beitr. z. Meerestauna 
Mauritius, p. 45 ; Quelch, ‘ Challenger’ Reef Corals, p. 165; Rathbun, Proc. U.S. Nat. Mus. 1887, 
vol. x. p. 15; Ortmann, Zool. JB. 1888, Bd. iii. p. 153; ibid. 1889, Bd. iy. p. 511 (non Ridley, 
Ann. Mag. N. H. 1883, vol. xi. p. 259; non B.-Smith, Ann. Mag. N. H. 1890, vol. vi. 
p. 454). : 
2 Madrepora efflorescens, Ortmann, Zool. JB. 1888, Bd. iii. p. 153. 
Corallum vasiform and pedicellate, tabulate, or frequently subvirgate when young. 
Upper surface usually flattened or concave ; under surface almost without any twigs or buds, 
but provided with numerous verruciform or annular, often dilated corallites. Vasiform 
specimens sometimes attain a diameter of 1:2 m., and a height of 30 to 60 cm., pedicel 3 to 
8 em. thick. The main branches are reticulately coalescent, the meshes of the network 
being 5 to 10 mm. wide. Branchlets on the upper surface more or less crowded, many are 
short and acervato-proliferous ; length 1 to 2°5 cm., diameter 5 to 10 mm.; but without the 
radial corallites the majority are little broader than the axial corallite. Axial corallites 
