McCULLOCH AND WAITE — FiSHES FROM SOUTH AUSTRALIA 61 



gill-membranes forming a free fold across the isthmus ; gill-rakers represented hy 

 one or two minute tubercles on the first gill-arch. 



Body \ery elongate, compressed, and wholly naked as far as the vent ; 

 thence minute non-imbricate and cycloid scales appear on the median line and 

 gradually spread tmtil they co\er the posterior portion. Lateral line consisting 

 of a short series of tubes on the humeral region ; a groove extends along the mid- 

 dle of the Ijody from the shoulder to near the tail, and less distinct ones occur near 

 the bases of the dorsal and anal tins. \'ent with two small papillae. 



Fins. Dorsal low. commencing a short distance behind the head, the sjiines 

 increasing in length backwards ; the three simple rays are longer than the posterior 

 spine, and united with the caudal : the anal commences just behind the vent, and 

 its rays increase in length backwards ; the last is united with the caudal : ventral 

 jugular, shorter than the eye, the membrane apparently enclosing a single ray, 

 which is divided to its base : no true pectoral, but a membrane enclosing rudi- 

 mentary rays is present, and is connected with the opercular lobe : caudal obtusely 

 pointed. 



Colour-iiiarkiin/s. Whitish in alcohol, with a sharply defined blackish-brown 

 band extending from the snout to the tail, which cox'crs the toj) of the head, bade, 

 dorsal fin, and upper portion of the caudal : another Ijand, which is light anteriorly 

 but becomes darker backwards, extends from the \ent to the tip of the caudal, 

 and covers the lower part of the body and the greater part of the anal : six more 

 or less definite grey stripes extend backwards from the head, the upper of which 

 are mostly distinct: sides of the head with three or four oblique, dark-edged 

 stripes extending along each side of the head, and others are present on its upper 

 surface 



Described and figured from a s])ecimen lOO mm. long. • 



Identity. This specimen dift'ers from Steindachner's description in several 

 details. It has Ixxxi spines and 3 rays in the dorsal, instead of Lxxv, 5, and 

 ii, 37 instead of ii, 52 in the anal, and apparently an additional ray in each ventral. 

 The proportions of the eye and the snout are slightly different, and the vomer 

 bears conical teeth instead of being smooth. In all other characters, however, 

 it apjjears so similar to P. ani/iiillaris that we believe it to be correctly identified 

 with that species. 



.Synonvinw Iluccntronolns .zict.zi ( )gilby. is apparently synonymous with 

 Steindachner's species: ( 'gilby counted lxx\ii-lxxix, 4, and i, 57-59 spines and 

 ravs ni the dorsal and anal fins, respectively, which numbers are intermediate 

 lietween our count and that of Steindachner. He further found only foui 

 branchiostegals instead of six, and 2 instead of 3-4 rows of teeth anteriorly. His 

 specimens had three \entral rays, ours appears to have two, while .Steindachner 



