CHECK-I.IST OF THE FISH AND FISH-LIKE ANIMALS OF NEW SOUTH WALES. 



21!) 



SHARKS AND RAYS. Subclass PLAGIOSTOMI. 



A. Gill-openings on the sides ; pectorals not attached to the head ; body subfusiform. 

 AA. ' iilt-openings on th> lowi r surface ; pectorals attached to the- head ; body discoid. 



SHARKS. Order Selachii (Nos. iii.-xvii.), 

 RAYS. Order Batoidei (Nos. xviii.-wiv.). 



SHARKS. Order SELACHII. 

 A. i>-7 yill openings; one dorsal tin. 



B. No gill-op - the throat, mouth inferior. 



BB. Margin of first gill-opening frit- across the throat, mouth anterior. 

 AA. 5 gill-openings ; two dorsal fins. 



C. Anal fin present. 



D. Dorsal fins with fixed spines. 

 1>D. Xo dorsal spines. 



E. Eyes with nictitating membranes, 



F. Te.th compressed, triangular, one s ries functional. 

 G. Head normally formed. 

 GG, Head hammer or kidney shaped. 

 FF. Teeth in bands or pavements, more than one series functional. 

 EE. Eyes without nictitating membranes. 



H. First dorsal over or behind the ventrals, 



I. X.isoral grooves present. 



II. No oasoral grooves. 



UH. First dnrsil more or less in advance of the ventrals. 

 J. Caudal peduncle without lateral keels. 



K. Tail very long ; more than half the total length. 

 KK, Tail normal; less than half the total length. 

 J J. Caudal peduncle with lateral keels. 

 L. Gill-openings moderate, teeth large. 

 LL. Gill-openings very wide, teeth small. 

 CC. Anal fin absent. 



M. Body subcylindrieal, pectoral fins normal. 

 X. Dorsal fins with spines, snout normal. 

 XX. l>orsal fins without spines, snout saw-like. 

 MM. Body depressed ; pectoral fins greatly enlarged, with an anterior 

 extension separated from the body by a notch. 



Family Hcxanchidae (No. iii.). 

 Family Chlamydoselachidae (Xo. iv.). 



Family Hctcrodontidae (No. v.). 



Family CarcharhmitiiiL [No. vi.ij 

 Family Sphyrnidae (Xo, viii.). 

 Family Afustelidae (Xo. vii.). 



Family Orectolobidae {No. ix.). 

 Family Scylliorhinidae (Xo. x.). 



Family Alof>itdae (Xo. xi.). 

 Family Carchariidae (Xo. xii.). 



Family Isuridae (No. xiii.). 

 Family Cttorhiitidae (No. xiv.). 



Family Squaltdac (No. xv.). 

 Family Prist iophoridae (Xo. xvi.). 



Family Squatiuidae (No. xvii.). 



III. 



A. Head broad, snout broad. 

 AA. Head tapering, snout narrow. 



Family Hexanchidae. 



Notorhynchits (3). 

 Heptranchias (4). 



3. Notorhvnchl's Ayres, Proc. Cal. Acad. Sci.'i., 1855, p. 73 (maculaius) . 



3a. N. pectorosus. Seven-gilled Shark. Heptranchias pectorosus Garman, Bull. Essex. Inst, xvi., 

 1884, p. 56 ; Heptranchias indicus Macdonald and Barron, Proc. Zool. Soc, 1868, p. 371, pi. 

 33. (PI. xvi.). 

 A small shark, with numerous primitive characters, reaching about eight feet in length; the 

 teeth are of remarkable form, and very different in each jaw. Rare in our waters. 



4. Heptranchias Rafinesque, Caratt. gen. spec. Sicilia, 1810, p. 13 (cinereus). 



4a. H. perlo. One-finned Shark. Squahts perlo Bonnaterre, Encycl. Meth., Ichth. 



p. 10 ; 



H. perlo McCulloch, Zool. Res. Endeavour i. 1, 1911, p. 2, pi. 1, I. (PI. xvi.). 



A deep water species recently taken off Botany Bay by the State Trawlers. It ranges from the 

 Mediterranean and neighbouring Atlantic to Japan and southern Australia It is a small species 

 with primitive characters like the preceding. 



IV. Family Chlamydoselachidae. 



5. Chlamydoselachus Garman, Bull. Essex. Inst., xvi., 1884 p. 52 (angiiineus). 



5a. C. sr. Frilled-gilled Shark. 

 P- 554- 



Chlamydoselachus sp. Stead, P.L.S. N.S.W., xxxii., 1907, 



