NO. 1324. ELASMOBRANCHIA TE FISHES— JOn DA X A XD FO 1 1 l.EJi. (3 ( ) 3 



isecond dorsal nearer first dorsal than base of caudal lobe; anal fin below, 

 land a trifle in front of second dorsal; pectorals large, nearer tip of 

 snout than origin of ventrals; ventrals rather low, their origin nearer 

 origin of anal than that of pectoral; caudal longer than head. 



Color pale brown, ver}- light below, marbled above with shades of 

 dark and deep brown; on back fiv^e broad cross bars of pale rudd}^ 

 brown, with blotches of darker brown, first behind the eye, next over 

 base of pectoral, next between it and first dorsal where another i^j, and 

 tinall}' last at second dorsal ; on caudal, two broad cross bars, one at 

 base of caudal, the other near its tip. Length 38i inches (9<s cm). 



Type a dried skin, No. 12693 Ichthyological collections, Stanford 

 Universitv Zoological Museum. 



Locality, Nagasaki. 



^^g^^F^ 



Fig. 1. — Cephaloscyllium umbratile, 



Coast of Japan southward, apparently quite rare, as we have 

 obtained only one specimen from Nagasaki, collected by Mr. Yahiro. 

 From the same locality it is also recorded l)y Nystrom. 



( umbratllisj shaded . ) 



Family V. HEMISCYLLIID^E. 



This group is closely allied to the Scyl/orJiinida'^ differing mainly 

 in being ovoviviparous, the young being brought forth alive as in 

 most sharks. The nasal and buccal cavities are confluent, the anal is 

 behind the second dorsal, the large spiracles are more or less behind 

 the eye, and the body is usually marked with dark cross-bands. 



a. Hemiscyllin.e. Sides of head with no dermal flaps or cirri; spiracles very dis- 



tiuct below the eye; anal far l)ehind second dorsal ChilnxciiHhun, 6. 



aa. Orectolobin.e. Sides of the head with dermal flaps or cirri; si)iracles wide, 

 oblique slits behind and below the eye Orcctolohui<, 7. 



6. CHILOSCYLLIUM Muller and Henle. 



Cliilosci/l/iKiii MtTLLEK and IIenle, Plagiostomen, 18o7, p. 17 {pkKj'iomm). 

 Symhivims Gill, Am. Lye. Nat. Hist. N. Y., ISiil, p. 40S [tuberculatus). 



Spiracle very distinct, below the eye. Nasal and buccal cavities con- 

 fluent; nasal valve folded, with a cirrus. Lower lip Avell developed, 

 continuous across the symphysis. Teeth small, triangular, with or 

 without lateral cusps. Last two gill-openings close together. Dorsal 



