270 Mr. C. T. Regan on the 



pectoral fin, as is indicated by the specific names ; all are 

 small littoral forms. 



I have examined the skeleton of Congrogadus siihducens, 

 and I liave ascertained that Ilalidesmus agrees with it in the 

 structure of the pterygoid. 



Family 4. Notograptidae. 



Body covered with small scales. Vertical fins confluent ; 

 each dorsal and final ray, except the last two, which are 

 branched, a slender pointed spine to which a distal filament 

 is attached posteriorly ; caudal of 11 branched rays ; pelvics 

 small, jugular, 1-rayed, appearing as a })air of simple fila- 

 ments. Mouth not protractile; a short mental barbel; 

 maxillary excluded from the gape, reduced to a slender rod; 

 broad bands of small pointed teeth in the jaws and on tlie 

 ]jalatines, which nearly meet in the middle line below the 

 toothless vrmer ; pterygoid connecting palatine with quad- 

 i^ate. Parietals meeting above the supraoccipital ; exoccipital 

 condyles wide apart. Post-temporal forked; hypercoracoid 

 and by pocoracoid well developed, in contact ; radials hourglass- 

 shaped. 



This family includes but a single species, Notograptus 

 giittuiufi, Giinth., represented in the liritish Museum by three 

 examples from Cape York and Bowen. 



Division 2. Clinifokmes. 



Each basal bone of the dorsal and anal fins attaclied to 

 its own neural or lia?.mal spine. Suborbital ring laminar, 

 movable. Exoccipital condyles wide apra-t. 



Family 1. Clinidffi. 



Body usually scaly. Dorsal with spinous portion more 

 extended than the soft, or with all the rays spinous ; 1 or 2 

 anal spines; caudal free, with about 13 principal rays; 

 pectorals broad-based ; pelvics jugular-, of a spine and 3 or 4 

 simple articulated rays, 2 or 3 of which are usually thickened, 

 closely articulated and free distally. Grill-membranes united, 

 free from isthmus. Mouth protractile; conical or villiform 

 teeth in jaws and often on vomer and palatines. Suborbitals 

 not stout; pra3orbilal a lamina with a small pit on its upper 

 edge articulating with a small facet on the lateral ethmoid ; 

 postorbital a lamina adiierent by its upper edge to the skull. 

 Postorbital part of skull of nearly equal width throughout ; 



I 



