;i. SYMBRANCHtJS. 15 



Opliicardia xauthogiicatha, Richards. I. c. 



Apterigia saccogularis, Basileivsky, Nouv. Mem. Soc. Nat. Mosc. x. 

 1805, p. 247, tab. 8. fig. 2. 



nigromaculata, Baailewshj, I. c. p. 248, tab. 2. fig. 2. 



immaculata, Basilcirsky, I. c. 



Tail narrow, tapering into a point. Vci't. 100/88. 

 East-Indian archipelago ; Continent from Siam to Northern 

 China. Chinese Islands and Japan. 



rt. Adult. Batavia. From Dr. Cantor's Collection. 



h. Large specimen, 35 inches long. Borneo. 



c. Half-grown. Borneo. 



d-(i. Half-grown. Sarawak. Presented by the Marquis Doria. 



li, i. Half-grown. East-Indian archipelago. 



Z-, /. Adult and young. Siam. 



m, )i, o-p. Adult and half-grown. Formosa. From Consul Swin- 



hoe's Collection. 

 q. r-s. Half-grown. Chusan. From Dr. Cantor's Collection. Tyjics 



of /S'. ijrammicus. 

 t, u-v. Half-grown and young. China. 

 IV. Half-grown. Hong Kong. From the Haslar Collection. 

 X. Adult. Ningpo. Purchasccl^f Mr. Cuming. 

 y-z. Half-grown. North ChinaV Purchased of Mr. Jamrach. 

 n, /3, y-l. Adult, half- grown, and young. Japan. 

 e. Half-grown. Presented by Sir A. Smith. 



3. SYMBRANCHUS. 



Symbranch us, Bluch . 

 UnibraiK-hapertura, Lnce'p. 

 t)plii.sternoii, AL Clclland. 

 Tetrabranclius, lileclcer. 



Body naked. Four branchial arches with well-developed giUs. 

 No accessor}' breathing-sac. Gill-membrane free from the isthmus. 

 Palatine teeth in a band. 



Tropical America, East Indies to Australia. 



1. Symbranchus mannoratus. 



Murrena, sp., Gnmov. Zoophi/l. p. 39. no. 162. 



Synbraiielius niarmoratus, Bl. ix. p. 87, tab. 418 ; Bl. 8chn. p. ;'J24 ; 



Kaiip, Aj)0(I. p. 122. 

 inimaculatus, Bl. ix. p. 87, tab. 419. fig. 1 ; Bl. Scfai. p. 524, 



tab. 103. fig. 1 ; Kaup, Apod. p. 122. 



transversalis, Bl. Schn. p. 87. 



Unibranchapertm-a manuorata, Lacep. v. p. G58. 



immaculata, Lacep. t. p. (i58. 



grisea, Lacep. v. p. 6-58. 



lineata, Laap. v. p. Go8. 



Synbrancluis fuliginosu.s, liatiza/ii, Aor. Comm. Ac. Scknt. Inst. 

 ' Bonon. iv. 1840, p. 7o, tab. 11. fig. 1. 



