52 THE PLAGIOSTOMIA. 



a larger one between the pectorals, a third forward from the ventrals, and others 

 across each dorsal and the anal. Posteriorly the blotches extend downward 

 more on the flanks. Fins with dark spots. A lighter spot behind each spiracle. 

 Queensland. 



Orectolobus maculatus. 



Le barbu Broussonet, 1780, M6m. Acad, roy., p. 657. 



Squalus maculatus Bonnaterre, 17S8, Ichth., p. 8. 



Watt's shark Philipp, 1789, Voy. Botany Bay, p. 285. 



Squalus barbatus Gmelin, 1789, Linne" Syst., 1, p. 1493; Schn., 1801, Bloch Ichth., p. 128. 



Le squale barbu Lacepede, 179S, Poissons, 1, p. 247. 



Squalus lobatus Schn., 1801, Bloch Ichth., p. 137. 



Squalus appendiculatus Shaw, 1806, Nat. misc., 17, pi. 727. 



Chrossorhinus lobatus A. Smith, 1837, Proc. Zool. soc. Lond., p. 86. 



Crossorhinus barbatus Ddmeril, 1865, Elasm., p. 338 (part); Gunth., 1870, Cat. fishes Brit, mus., 8, 



p. 414. 

 Crossorhinus barbatus McCoy, 1880, Zool. Vict., 5, pi. 43, f. 1; Macleay, 1881, Proc. Linn. soc. N. S. W. ( 



6, p. 365. 

 Orectolobus barbaius Jord. & Fowler, 1903, Proc. U. S. nat. mus., 26, p. 606; Regan, 1908, Proc. Zool. 

 soc. Lond., p. 355. 



Body and head broad, little more than half of the total length; tail slender, 

 compressed posteriorly. Head depressed, snout very short, broad. Eye small, 

 prominent, opening longer than wide. Spiracles large, elongate, oblique, close 

 behind and below the eye. Nostrils anterior, connected with the mouth by a 

 nasoral groove; anterior valve with a long cirrus on the upper half of which 

 there is a dermal fold with one or more short lobes ; posterior valves forming a 

 fold at the outer side of the nostril and continuing into the upper labial fold and 

 a longitudinal fold along the outer side of the nasoral groove the free pointed 

 extremity of which extends toward the angle of the mouth. Mouth wide, nearly 

 anterior, with labial folds around the angle on both jaws. Teeth moderate, 

 anterior larger with a single narrow elongate cusp and a broadened base, posterior 

 small with a more or less developed lateral cusp at each side of the median. 

 A couple of dermal folds or barbels, ending in bifid or trifid lobes at the angle of 

 the mouth, a couple more at the side of the throat, and a few very small ones 

 below the chin. A prominent ridge over and above each eye, bearing processes 

 above the orbit. 



Dorsals subequal, subangular, base of first dorsal equal to their distance 

 apart. Anal short, origin nearly below tip of second dorsal. 



Greyish brown to brown spotted and mottled with various shades of darker, 

 commonly with larger blotches on the back and across the tail. Many of the 

 brown areas edged with lighter. Lower surfaces plain. 



Australian Seas. 



