612 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxvi 



Described from a very large specimen from Nagasaki, where ex- 

 amples, 15 feet or more long, were seen. 



A very large shark, reaching a length of 25 feet and a weight of 

 nearly 2,000 pounds. The head of a huge specimen is in possession of 

 M. Yahiro, proprietor of a natural-history shop in Nagasaki. It has 

 the snout very short, nostrils midway in its length; teeth seriate, 

 alike in l)oth jaws, those in back deeply notched; width of jaws nuich 

 exceeding snout; jaws with short labial fold; spiracles small; second 

 dorsal a little smaller than first, slightly before anal; caudal considerably 

 less than space between dorsals. 



This species was taken at Onomichi, Hiroshima, and Nagasaki, and 

 it appears to be generally common on the shores of Kiusiu. 



11. GALEOCERDO Muller and Henle. 



Galeocerdo Muller and Henle, Plagiostonien, 1838, p. 59 {lUjrinus). 

 Borfoffcdcm G\Lh, Ann. Lye. Nat. Hint. N. Y., VII, 1861, p. 411 {arclirm). 



Mouth crescent shaped; teeth alike in both jaws, large, oblique, 

 coarsely serrated on ])oth margins, with a deep notch on outer margin; 

 spiracles present; caudal tin with a double notch; a pit on the tail 

 above and below at the base of the caudal tin; first dorsal opposite the 

 space between pectorals and ventrals. Large sharks, found in most 

 seas. 



[yaXeos, a kuid of shark, like yaX?}^ the weasel; K^pdoo^ a fox or 

 weasel.) 



II. GALEOCERDO TJGRINUS Muller and Henle. 



Onleocerdo %?-mn.s Muller and Henle, Plagiostomen, 1838, p. 59; Pondicherry. — 

 GtiNTHER, Cat. Fish, VIII, 1870, p. 378; Japan, East Indies.— Dumeril, 

 Elasmobranelies, I, 1870, p. 393; Pondicherry (Coll. Dussumier). 



Head, Ti in length; depth, about 10; snout, 3^ in head; interorbital 

 space, li; width of mouth at corners, about 1|; eye, 5| in the inter- 

 orbital space; space between nostrils, 2. 



Hody elongate, tapering to caudal. Head very much broader than 

 dee}), depres.sed; eyes small, lateral, nearer snout than gill opening; 

 snouL luoad, short, rounded; mouth very broad, rounded; teeth 

 numerous, rather large, compressed, with several basal cusps, and 

 with edges moi'e or less serrated; a labial fold at corners of month: 

 nostrils large, mfcnior, about midway between tip of snout and eye: 

 interorbital space very l)road, Hat. Spiracles very small )>ehin<l eye. 

 Gill openings large, posteriorly above base of pectoral. 



Body very finely roughened. 



Fii'st dor.sal beginning about first foui'th of interspace between 

 oiigin of pectoral and that of ventral; second dorsal small, a little 

 nearer origin of tirst dor.sal than tip of caudal; anal small, beginning 

 behind origin of second dorsal: pectorals rather long; ventrals very 



