40 NEW GENERA AND SPECIES OF FISHES, 



PLATYCEPHALID^. 



Thysanophrys, gen.nov. 



Body rather short, stout, and somewhat depressed, covered 

 with moderate rough scales, which are partly ciliated and partly 

 cycloid. Lateral line complete, extending on the caudal fin, the 

 tul)es widely bifurcate and occupying the entire length of the 

 scale. Head broad and much depressed, mostly naked. Mouth 

 anterior, with large, slightly oblique cleft, the lower jaw project- 

 ing; premaxillaries slightly protractile; maxillary lateral, partly 

 exposed, without supplemental bone. Teeth villiform, in bands 

 on the jaws and palatines, in two subovate patches on the vomer; 

 pterygoids and tongue smooth. Nostrils approximate, the anterior 

 with a tentacle. Eyes superior, close together, the lids with 

 dermal appendages. Angle of preopercle produced and spini- 

 gerous; opercle with two widely divergent spines; no subopercular 

 appendage. Branchiostegals seven ; gill-rakers short, stout, 

 spinulose, few in number. Two separate dorsal fins, with viii, 

 12 rays, the second the longer; anal with 11 soft rays, similar to 

 the second dorsal; venti'als large and widely separated, inserted 

 behind the pectorals, with i 5 rays, the fourth the longest ; 

 pectorals moderate, rounded, with 20 rays, the upper middle ones 

 the longest; caudal rounded. Posterior processes of the premax- 

 illaries not extending to the frontals; prefrontal and supraorbital 

 bones greatly developed, the former with a strong spine; cranial 

 ridges with strong spines. Vertebra3 27. 



Etymology : — dvaavos, fringe; 64>pvs, ej^ebrow; in allusion to 

 the series of dex'mal appendages above the eye. 



Type: — Platycejjliahis cirronasus, Ptichardson. 



Distribution : — Coast of New South Wales. 



Through the kind assistance of Dr. Gregg Wilson I am enabled 

 to give the following more detailed account of the cranial 

 armature of the type : — Prefrontal with a large posteriorly- 

 directed spine; supraorbital crest of frontal prominent and ending 

 in a small spine ; behind this another more prominent spine 

 appears on the frontal; sphenotic with a small but distinct spine; 



