McCUI.LOCH AND WAITE — FiSHES FROM SOUTH AUSTRALIA 73 



Histiophrync bougainvillii CAW, Proc. Acad. Nat. Sci. Philad.. 1863, p. 90, and 



Proc. U.S. Nat. Mus. i. 1S79, P- 2.22. 



Plate vii, fig. i. 



D.i, i. i, 15: A.8: P.8: \".5; C.9. 



Depth 1 '5 in tile length to the hypural joint: head 2 '5 in the same: eye equal 

 to the length of the snout, 5'i in the head: first dorsal siiine slightly longer than 

 the eye. 



Body short, deep, and thick: back elevated anteriorly, the head much deeper 

 than long: mouth \ery ol)lique. the gape extending to below the anterior portion 

 of the eye: ma.xillary hidden in a skinny fold: eye small, round: nostrils supero- 

 lateral, the anterior with a low skinny margin: skin smooth, without spinules 

 (see notes under variation;, e.\cept on the dorsal spines: mucigerous system 

 defined by small pores with skinny lobes on each side of them ; they commence 

 on the snout and cur\e oxer the eye to the shoulder, where they form the lateral 

 line which curves downward to abo\e the anterior part of the anal, and is lost on 

 the lower portion of the tail : another series extends backward from the mandi- 

 bular symphysis around the iM'eopercular margin ; about four pores are present 

 above the ujjijer lip, and others cross the cheek and the nape. 



Teeth large, cardiform, and depressible: they are arranged in two rows on 

 the anterior part of the upper jaw, the inner ones being much larger than the 

 others : mandibular teeth larger, biserial : a patch of large teeth on each side of 

 the vomer, smaller ones on the anterior part of each palatine, and others on each 

 side of the tongue. 



Fins. First dorsal sjjine free, short and slender, with spinules at its base, and 

 a fleshy knob at its tip : second and third spines scarcely projecting, tubercular, 

 and covered with spinules : a thick membrane connects the third with the soft 

 dorsal : the latter is formed of simple rays which increase slightly in length to 

 about the twelfth; the last ray is united liy memljrane to the basal third of the 

 upper caudal ray : anal opi)Osite the end of the soft dorsal, its last ray united with 

 the basal portion of the lower caudal ray : pectorals, ventrals and caudal rounded, 

 the last with bifurcate rays. 



Colourless after long preservation in alcohol. 



Described from a specimen 4! mm. long, which is without data: it is well 

 preserved, and appears to agree with the description of H. bongainz'illi. which 

 was also from an unknown locality. 



J'ariatioii. Two other specimens in the South Australian Museum are 

 ai^parently identical with this species, though they dift'er greatly in appearance 

 owing to their indifferent state of preservation: one is greatly compressed and 

 shrunken, and the skin is beset with microscopic sjiinules ; the anal and pectorals 

 each have nine rays: the other specimen is \-ery robust but distorted, and its skin 



