220 THE VOYAGE OF H.M.S. CHALLENGER. 



Ophiothrix longipeda, Mull. (PI. XLVII. fig. 4). 



Ophiotkrix longipeda, Mull. & Tr., Syst. Ast., p. 113, 1842; Lym., 111. Cat. Mus. Comp. ZooL 



No. i. p. 176 ; Ltk., Addit. ad Hist., part 3, p. 56. 

 Ophiura longipeda, Lmk., Hist. Anim. sans Vert, vol. ii. p. 544, 1816. 

 Ophiure icailleune, Blainv., Faune Frang. Stell., pis. vi., vii. 



The great lobes often noticed in this genus are explained by the immense quantity of 

 eggs with which the interbrachial spaces are stuffed. These masses are traversed by 

 canals leading to the ovarial bursse. They are figured in Plate XLVII. 



Station 186.— September 8, 1874; lat. 10° 30' S., long 142° 18' E. ; 8 fathoms; 

 coral sand. Ternate Shore. — August 7, 1874. Station 188. — September 10, 1874; lat. 

 9° 59' S., long. 139° 42' E. ; 28 fathoms; mud. Tongatabu; 18 fathoms (same 

 species?). Amboyna ; 100 fathoms (same species ?). Samboangan ; 10 fathoms. 



Ophiotkrix pusilla, Lym., Bull. Mus. Comp. ZooL, vol. iii., part 10, p. 235, pi. iii. 

 figs. 21-30. 



Station 208.— January 17, 1875 ; lat. 11° 37' N., long. 123° 32' E. ; 18 fathoms ; mud. 



Ophiotkrix exigua, Lym., Bull. Mus. Comp. ZooL, vol. iii., part 10, p. 236, pi. iv. 

 figs. 24-26, 1874. 



Station 188.— September 10, 1874; lat. 9° 59' S., long. 139° 42' E. ; variety?; 28 

 fathoms; mud. Station 208. — 18 fathoms; mud. 



Ophiothrix ciliaris, Mull. & Tr., Syst. Ast., p. 114, 1842; Lym., Bull. Mus. Comp. 

 ZooL, vol. iii., part 10, p. 233, pi. iv., figs. 29, 32. 



Ophiura ciliaris, Lmk., Hist. Anim. sans Vert., vol. ii. p. 545, 1816. 



Station 209.— January 22, 1875; near Cebu ; lat. 10° 10' N, long. 123° 55' E. ; 

 95 to 100 fathoms ; mud. 



Ophiothrix stelligera, Lym., Bull. Mus. Comp. ZooL, vol. iii., part 10, p. 237, pi. iii. 

 figs. 15-20, 1874. 



Arafura Sea (?) ; August 7, 1874. Station 186.— September 8, 1874; Samboangan, 

 Philippines ; lat. 10° 30' S., long. 142° 18' E. ; 8 fathoms ; coral sand. 



Ophiothrix propmqua, Lym., Proc. Bost. Soc. Nat. Hist., vol. viii. p. 83, 1861 ; 

 111. Cat. Mus. Comp. ZooL, No. i. p. 174 ; Bull. Mus. Comp. ZooL, vol. iii., part 10, p. 234. 

 Ophiothrix longipeda (young), Ltk., Addit. ad Hist., part 3, p. 56, 1869. 



(?) Tongatabu Beefs ; 18 fathoms ; (red var.). Samboangan (same sp. ?). Fiji, Levuka 

 Reefs. 



