382 , CARCHAEirCE. 



n-0. Half-grown. Formosa. From Consul Swinhoe's Collection. 



23. Young. Amoy. From Consul Swinhoe's Collection. 



q, r. Half-grown and young. Japan. Purchased of Mr. Jamrach. 



s. Stuffed, 51 inches long. South Australia. Purchased of Mr. 

 Knight. 



t. Half-grown : stuffed. Island of Totoya (Feejee Islands). Col- 

 lected by F. M. Rayner, Esq. 



?«, V, w, X. Young and foetus. 



y-z. Half-grown : stuffed. 



(t. Jaw of a large example. From the Collection of the Zoological 

 Society. 



/). Jaws of a half-grown example. 



3. Zygsena tudes. 



Zygfena tudes, Citv. Regne An. ; Valenc. Mem. Mus. ix. p. 225, pi. 12. 



%.l. 

 Syhyrna tudes, Midi. ^- Henle, p. 53 ; Mull. Sf Tvosch. in Schomhnrgk, 



Brit. Guiun. iii. p. 642. 

 Cestracion tudes, Dumeril, Elasmohr. p. 384. 



Intermediate between Z. malleus and Z. tihuro. 



Anterior margin of the head much curved, but not continuous 

 with the lateral edge ; the length of the hind margin of one side of 

 the hammer is less than its width near the eye. Nostril close to the 

 eye, prolonged into a groove running along the greater part of the 

 front margin of the head. 



Mediterranean ; tropical parts of the Atlantic ; Indian Ocean and 

 archipelago. 



a. Half-grown (32 inches) : stuffed. West Indies, Purchased of 



Mr. Scrivener. 

 h. Young. Domerara. Presented by Sir R. Schomburgk. 



c. Young : stuffed. Zanzibar. From Lieut.-Col. Playfair's Col- 



lection. 



d. Young. Sumatra. Purchased of Hr. Frank. 



e-f. Yoimg. From the Collection of Dr. van Lidth dc Jeude. 



4. Zygaena tiburo. 



Tiburonis, species minor, Pkon. Hist. Nat. Bras. p. 181 ; Wilh(ghby, 



p. 55, tab. B 9. 110^3. 

 Cestracion, uo. 2, Klein, Miss. iii. p. 13, tab. 2. figs. 3 & 4. 

 Squalus tiburo, L. Si/st. p. 399; Bl. Schn. p. 131; Gronov. Syst. ed. 



Grag, p. 6. 

 Heart-beaded Shark, Shaw, Gen. Zool. v. 2. p. 855, pi. 154, and Nat. 



Misc. pi. 229. 

 Sphyrna tiburo, Miill. c)- Henle, p. 53. 



Zygaena tiburo, Valenc. Mem. Mas. ix. p. 226, pi. 12. fig. 2. 

 ? Zygaena subarcuata, Storer, Proc, Bost. Sac. Nat. Hist. 1848, 



p. 70. 

 Cestracion tiburo, Dumeril, Elasmobr. p. 385. 



The anterior and lateral margins of the head are confluent, form- 



