31 



Order VII.-GANOIDEI. 



Stm-ionidae Acipenser brachyrhynchuB 355 



transmontanns 355 



aeutirostria 355 



medirostris 356 



Order TTTT. HOLOCEPHALT. 



Chimaeridse Chimaera Colliei 860 



Order IX. PLAGIOSTOMI. 



Suborder I. SQUALL 



Order X DERMOPTERI. 



Suborder MARSIPOBRAXCHII *. CTCLOSTOMI. 



Petromyzontid Petromyzon tridentatus 377 



ciliatus 378 



lividns 379 



plumbeus 380 



astori 380 



Ammoco3tes cibarins 383 



Explorations and Surveys for a Rail-oad route from the Mississippi River 

 to the Pacific Ocean. | War Department, j | Route near the S9;h and 

 39th parallels, explored by Captain J. W. Gunnison, and near the 4lst | 

 parallel, expljred hy Lieutenant E. G. B ckwith. | | Zoological Re- 

 port. 1 | | Washington, D. C. | 1857. | = \ * The report to which the pres- 

 ent article belongs will be found in Vol. II of ihe series. 

 No. 4. Report on Fishes collected on the Survey. By Charles 

 Girard, M. D. (pp. 21-27, with pi. xxiii, xlix, liv, Ivi, Ixxiii, Ixxv.) 

 Explorations and surveys for a railroad route from the Mississippi River 

 to the Pacific Ocean. | War Department, j = | Route near the thirty- 

 fifth parallel, explored by Lieutenant A. W. Whipple, Topographical | 

 Engineers, in 1853 and 1854. | | Zoological Report. | | Washington, 

 D. C. | 1859. | = 



No. 5. Report upon Fishes collected on the Survey. By C. Girard, 

 M. D. pp. (47-59, with pi. iii-vi, ix, x, xxi, xxiv, xxv, xxxv, 

 xl&, lii, Ivii, Iviii.) 



Explorations and Surveys for a Railroad Route from the Mississippi River 

 to the Pacific Ocean. | War Department. | = | Routes in California, to 

 connect with the routes near the thirty-fifth and thirty-second | parallels, 

 explored by Lieut. R. S. Williamson, Corps of Top. Eng., in 1853. | | 

 Zoological Report. | | Washington, D. C. | 1859. = 



No. 4. Report on Fishes collected on the Survey. By Charles Girard, 

 M. D. (pp. 83-91, with pi. ii, xii, xxii, xxvii, xxviii, xxxi, xxxvi, 

 xxxviii, xxxix, xlvii.) 



