RECORDS OF W. A. MUSEUM. 
[85 
BOSTOCKI A HEMIGRAMMA, Ogilby. 
Plate X ; Fig. 3. 
Bostockiahemigramma, Ogilby — Proc. Linn. Soc. N. S. Wales, XXIV., 1899, p 168. 
The collection includes a small specimen of this species from 
the Helena River, near Perth, and two others from the same locality 
are in the Australian Museum. The largest of these, 155mm. long, 
is the one selected for illustration. I have compared it with a co- 
type in the museum collection, so that, although its proportions 
differ somewhat from the smaller ones described by Ogilby, I have 
no doubt of its correct identification'. 
EDELIA, Castelnau. 
Edelia, Castelnau — Proc. Zool Soc. Vic., II. , 1873, p. 123 (vittala) ; Id., Ogilby, 
Proc. Linn. Soc N. S. Wales, XXIV., 1899, p. 175. 
As all my specimens, including two examined by Ogilby, differ 
in some important details from that author’s definition of this genus, 
I have drawn up the following corrected diagnosis. The items in 
brackets are as stated by Ogilby. 
Body oblong, compressed. Scales, large, adherent, finely cili- 
iated, concentrically striated. Lateral line interrupted below the 
second dorsal (complete), the tubes few, irregular, simple, extending 
along the entire exposed surface of the scale. Head moderate, 
largely scaly, snout and lower jaw naked. Mouth with small 
oblique cleft; jaws equal. Premaxillaries protractile; maxillary 
exposed at distal extremity only, naked. Bands of slender villifotm 
teeth in the jaws, a large patch on the vomer, and a few on the 
anterior part of the palatines (not seen by Ogilby) ; pterygoids and 
tongue smooth. Nostrils distant, simple. Eyes moderate, lateral, 
high. Preorbital denticulate. Preopercle entire. Operculum with 
two spines. Gill-openings wide, the membranes united in front, 
free from the isthmus; 5-6 branchiostegals. Pseudobranchiae 
present. Gill-rakers moderate, few. Two dorsal fins connected at 
the base, the first with 7-8 spines and longer than the second ; the 
