256 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUM 



upward. Rounded central lobe at base of each tooth and smaller 

 lobe in front of each deflected point. These double basal lobes quite 

 noticeable in teeth of both upper and lower jaws. First gill opening 

 much more oval than others; second, third, and fourth approximately 

 equal, and fifth larger. 



First dorsal originates just behind inner pectoral margin. Spines 

 of dorsals with polished appearance, rounded on sides and not flat- 

 tened laterally. Ventral origin nearer caudal tip than snout. Space 

 from hind ventral edge to lower caudal lobe' equals length of upper 

 caudal lobe. 



No sign of spots. 



Length, 31.75 mm. (Phillipps). 



New Zealand. Differs from Squalus megalops^ a nominal Aus- 

 tralian species, in the heavy, compressed, unpolished second dorsal 

 spine, somewhat shorter head, and more backward ventral fin. 



SQUALUS KIRKI Phillipps 



Squalus kirki PHnxipps, New Zealand Jouin. Sci. Techn., vol. 12, No. 6, p. 361, 



1931 (on Phillipps, 1929). 

 ? Squalus acanthias (not Linnaeus) Rendahl,, Viclensk. Medd. Dansk. naturh. 



Forenh. Kjobenhavn, vol. 81, p. 1, 1925 (Akaroa Harbor, New Zealand). 

 Squalus fernandinus (not Molina) Phillipps, New Zealand Jonrn. Sci. Techn., 



vol. 10, p. 223, 1928 (type locality: New Zealand ) .—Whitley, Mem. 



Queensland Mus., vol. 10, pt. 4, p. 199, 1934 (reference). 



Middle of ventral base posterior to midway between end of snout 

 and end of upper caudal lobe (in Squalus megalops middle of ventral 

 base exactly midway between snout end and end of upper caudal 

 lobe). Reaches 3 feet 6 inches. 



SQUALUS TASMANIENSIS Rivero 



Squalus tasmaniensis Rivero, Oceas. Pap. Boston Soc. Nat. Hist., vol. 8, p. 267, 

 pi. 10, figs, a-e, 1936 (type locality: Hobart Town, Tasmania). 



Depth 8% in length to subcaudal origin; head 5% measured to 

 first gill opening, width 1%. Snout 2^3 in head to first gill open- 

 ing; eye 8%, 3% in snout, 4 in interorbital ; mouth width 3 in head 

 to first gill opening; preoral length 214 ; mouth with short deep 

 groove and labial fold at each angle; teeth with cutting edges on 

 both jaws; upper teeth narrower, with 1 median tooth, its cusp 

 median, erect, pointed, with 2 lateral lobes; lower teeth broader and 

 more parallel to jaw, 2 rows in use and in both rows upper median 

 tooth clearly visible; nostrils transverse, halfway between mouth 

 and snout tip, anterior valve broadly rounded with rudimentary 

 extension on its hinder edge. Gill openings little less than half 

 length of orbit, all in front of pectorals. 



Scales formed by thtn median ridge, curved backwards and ending 

 posteriorly by blunt point, its anterior angle rounded, its upper 



