TELEOSTEI DIPNOI. 173 



Fam. Gobiidae. Gobies. (Inlnut nii/rr llond. : (T.rtiiriutilix 1'all.. Rivers of 

 Italy and of South-west Russia. 



Fain. Blenniidae. Blennies. AtmarJiichnx /////w.s- L.. Wolf-fish : Jileiiniux 

 IXT/IIII-IX L., Butterfly-fish, Mediterranean: /nan'fx riri/mfttx ( 'uv. (tig. (ill!;, 

 viviparous. 



Fain. Taenioidae. Silvery marine-fish, with compres-el. ribbon-like, elon- 

 u; i ted-like body. Triicluiptcriix ftil.r ( 'uv.. Val. = Tr. ttrnia P.I.. Sdin., Nice ; 

 (', /mlii nilii-xi-i-nx L., r.aud-tish. coasts nf Europe. 



Fain. Labyrinthici. The upper pharyngeal bones are hollowed out so as to 

 have the form of coiled (meandering') lamclhe (fig. 594). in the spaces between 

 which the water required to keep the gills moist is retained. Aintlmx xr/i/tt/r/i* 

 Dald.. Climbing Perch, East Indies. 



Fain. Pediculati. Of stout clumsy shape. The skin is naked, or covered 

 with rough prominences. The pelvic fins, which are small and placed on the 

 throat (jugular), have their so-called carpal pieces elongated, so that they form 

 movable arm-like supports for the body, and are in fact used for hopping and 

 creeping. Lojihhix pixetttor'uix L., Angler. Frog-fish, etc. (/Scirpaxos of the 

 Greeks), coasts of Europe (fig. lil") : Chironectes pictus Cuv. 



Order (3. DIPNOI.* 



Scaly Fishes with branchial and pulmonary respiration, with per- 

 sistent notoc/tord, muscular conus arteriosus and spiral valve in the 

 intestine. 



The Dipnoi (fig. 618) form a group so strikingly transitional 

 between Fishes and Amphibians that their first discoverer regarded 



FIG. 618. Pr/if<i/,f, //;.< anin-ctens. 



them as fish-like Reptiles, and in more recent times they have been 

 regarded as scaly Amphibians. In their external form they decidedly 

 resemble Fishes. The head is broad and flat, and has small, laterally 

 placed eyes and a fairly widely-split snout, at the extremity of which 

 are placed the two nasal openings. Directly behind the head are 

 two thoracic fins, which, like the similarly-formed pelvic fins, possess 



* J. Hyrtl, "Lepidosiren pnradoxa. Eine Monographic." Prag. 1S|.V 



G. Krefft, ' Beschreibung eines gigantischen Amphibiums aus dem Wide- 

 Bay-District in Queensland." 



A. Giinther. "Ceratodus und seine Stelle im System.'' An-Ji. filr \//>//r<r<'xch.. 

 Tom. XXXVII., 1871. 



A. Giinther. ' Description of Ceratodus, a genus of Ganoid Fishes." Phil. 

 Transact., 1871. 



