pishes of new zealand. 87 



Geotuia. 

 Dorsal fins two, the posterior separate froiu the caudal ; niaxilhiry 

 laniina with four sharp flat lobes ; a i)air of long pointed lingual teeth. 

 South Australia and Chile. 



139. GEOTRIA CHILENSIS. Gray. 



Lamprey. 

 Hiptatrenia domheyii, Cat. Col. Mus. G. cMlensis, Giinth., YIII., 509. 

 Skin on the throat not much dilated ; the outer lobes of the maxillary- 

 dental lamina are broad, with a sharp convex edge, the inner naiTow 

 and pointed ; mandibulary lamina crescent-shaped, Avith numerous 

 obtuse points ; Suctorial teeth in numerous series, so close together that 

 the teeth have the appearance of imbricated scales ; a sei'ies of larger 

 broad scale-like teeth round the mandib alary lamina; suctorial disc not 

 dilated, circular ; first and second dorsal fins widely separate from each 

 other. 



Back greenish ; sides and abdomen sHveiy (Giinth.) 



New Zealand ; Chili, Swan River. 



A specimen is in the Au.ckland Museum, from the Whanganui River • 

 it is 22-8 inches in length, and has slight indications of a gular pouch. 

 This species is also found in the Waikato. 



MYXINID^. 



Body eel-shaped, naked ; nasal aperture above the mouth, quite at 

 the extremity of the head, which is provided with four pairs of barbels ; 

 mouth without lips ; one median tooth on the palate, and two comb-like 

 series of teeth on the tongue ; branchial ajjertures at a gi-eat distance 

 fi-om the head ; marine. 



Bdellostoma. 



Six or more external branchial apertures on each side, each leading 

 by a separate duct to a branchial sac. 



Southern coasts of the southern hemisphere. 



140. BDELLOSTOMA CIRRHATUM. Porst. CM. 



Hag-. 



Myodne (jlutinosa, Cat. Col. Mus. B. cirrhatum, Giinth., VIII., 511. 



Six or seven gill openings on each side ; twelve or thii-teen teeth in the 



antei-ior series, the three foremost confluent at their base ; eleven teeth 



in the posterior series. 



