3:>8 



LKI'IDU.STKIDJ!:. 



1. Calamoichthys calabaricus. 



J. A. Smith, I. c, and Trnnn. R. Soc. Edinh. \SCA\ p. 4.)7, pis. 31 &32; 

 Traquair, Ann. ^- 3I(i(/. yat. Hist, xviii. pp. 112, 4U->, or Pruc. R. 

 Soc. Edinb. 18G5-G6, p. 057. 



From nine to eleven dorsal finlcts. Four scaled in an oblique 

 series between the lateral line and dorsal finlets. L. kt. 110. 

 Vert. 1(K»/10. 



Old Calabar. 



n-b. I'urcliased of Mr. Cutter. 



Faai 3. LEPlDOSTElDiE. 



Miilkr, Ahlmndl. Ak. Wiss. Berl. 1844, p. 147. 



Scales ganoid, lozenge- shaped ; fins with fulcra ; 

 dorsal and anal fins composed of articulated rays only, 

 placed far backwards, close to the caudal. Abdominal 

 part of the vertebral column much longer than caudal. 

 Opercular gill and pseudobranchiae present. 



Fresh waters of Central and North America, and Cuba. 



One genus only. 



1. LEPIDOSTEUS. 



Lepidosteus, Lacep. v. p. 331 ; Ar/assiz, Poiss. Fnss. ii. 2. p. 1 ; Midler, 



Ahhandl. Ak. Wiss. Berl. 1840, p. 147. 

 Lf ndosteu.s, Cylindrostciis, Atractnsteus, Girard, U. S. Pac. R. R. 



Exped. Fish. p. 351. 



Body elongate, subcylindrical ; snout elongate, spatulate or beak- 

 shaped ; cleft of the mouth wide ; upper jaw rather longer than 

 lower ; both jaws and palate armed with bands of rasp-like teeth 

 and series of lai^ger conical teeth. Nostrils near the extremity of 

 the jaw. Front of the fins with fulcra. A short dorsal fin opposite 

 to the anal and close to the caudal, the insertion of which is oblique, 

 partly on the extremity, partly below the vertebral column. Upper 

 jaw composed of numerous jiieces ; vomer <double ; lower jaw com- 

 posed of as many pieces as in reptiles. Vertebra; convex in front, 

 concave behind. Four free gills ; an accessory opercular gill and 

 I)seudobranchia ; no spiracles. Three branchiostegals. Air-bladder 

 cellular, communicating with the pharynx. Stomach without blind 

 sac ; numerous pyloric appendages ; intestine with a rudimentary 

 spiral valve. 



Fresh waters of North America ; Cuba. 



On the osti^ology and anatomy see Agassi/,, Toiss. Foss. ii. 2. pp. 1 

 cl se<iq. ; Miillcr, /. c. 1 Tocy, Mem. Cul). i. \>. 21') ; Van der Hoeven 



