330 LEriDObXJilB.K. 



Snout rather broad, spatulate, the length of the eleft of tlic mouth 

 being about one-half of the length of the head. There are seven- 

 teen scales in an obliqne series ascending obliquely forward from 

 the root of the ventral to the median line of the back. Teeth of the 

 palatine bones equally minute. 



United States, 

 a-c. From 2 to 3 feet long : stuffed. Louisiana, — (One is the type 

 of L. graiji, Agass,) 



Mr. Cope distinguishes Cylhulrosteus prodiictus from Texas, Proc. 

 Ac. Nat. So. rhUad, 18G5, p. 80 ; it has a narrower snout than 

 typical examples of L. pJati/stomus, the frontal breadth being con- 

 tained five times and a h;ilf in the upper part of the head in 0. pro- 

 ductus, and only four times and a half, or even less, in L. jdatiistumus. 



3, Lepidosteus osseus. 



Acus maxima squamosa, li'illii</filii/, Append, p. *22. 



Esox, sp., ^rilw/ii, Gvn. p. 14. no. ^, and Si/non. p. 27. no. 3. 



Esox osseus, L. Si/st. Aid. i. p. 51(J; BL tab. 390; Ul. Sckn. p. 392; 



Mitch. Tnais. Phil. <V Lit. *'«(•. N. York, i. p. 444. 

 ? Ohifis, l\irra, p. 109, lam. 40. fig. 1. 

 Lepisosteus gavialis, Lacep. v. p. 333 ; Gnichenot, Mag. Zuol. 1839, 



I'oiss. p. 5. 

 oxyurus, (Raf.) Kirthnd, Report, pp. 170, 19G, and Bost. Journ. 



Nat. ilist. iv. p. IG, pi. 1. fig. 1 ; Cope, Proc. Ac. Nut. Sc. I'hd. 1S05, 



p, 87. 

 Sarchirus vittatus, Eafinesqiw. 

 Lepisosteus hm'ouensis, Richards. Faun. Bor.-Amur. iii. p. 237 ; Cope, 



/. c. p. 80, 



gracilis, Ai/ass. Poiss. Foss. ii. 2. p. 3 ; Richards. I. c. p. 240. 



bison, Ihkaij, New York Faun. Fish. p. 271, pi. 43. tig. 139. 



seiniradiatus, Ai/ass. Poiss. Foss. ii. 2. p. 2, tab. A. tig, med. & 



15. tigs. 1-14 ; Midler, Ahhandl. Ak. Wiss. Bcrl. 1844, pi, 2. 



lineatus, Thompson, History of Vermont, p. 145. 



osseus, Agass. Poiss. Fo.ss. ii. 2. p. 2, tab. A-B" ; Storer, Mevi. 



Am. Acud. ii. p. 405 ; Cope, I. c. p. 87. 



leptorliyncbus, Girard, U. S. Pac. R.R. E.vped. Fish. p. 351. 



crassus, Cope, I. c. p. 80. 



otariiis, Cope, I. c. 



longirostris, Cope, I. c. 



Snout narrow, much elongate. There are from twelve to fourteen 

 scales in an oblique series ascending obliquely forward from the root 

 of the ventral to the median line of the back. ]\Iature examples 

 havo only one series of large teeth in the upper jaw ; but in young 

 ones (^to 12 inches) there is a very complete second series along the 

 palatine bones. Traces of this second series may be observed some- 

 times in examples 24 inches long ; but in older specimens the pala- 

 tines arc armed M'ith equally minute teeth. 



North America. 

 ri, b. Five feet long : stuffed. Louisiana. I'resenleil i>y W. P. 

 Smith. Esip 



