31 



Order VII. GAXOIDEI. 



Sturionidte Aciponsor brachyrhynchus 355 



transmontanus 355 



acutirostris 355 



medirostris 356 



Order VIII. HOLOCEPHALI. 



Chimaeridse Chimaera Colliei 3tiO 



Order IX. PLAGIOSTOMI. 



Suborder I. SQUALL 



Scylliodontidae Triakta semifasciatus 362 



MuKtblidio Mnstelns %lis 364 



CestraciontidfD Cestracion francisci 365 



Notidanidse Heptanchus inarulatun 367 



Spinacidae Acanthias Sucklii 368 



Suborder II.-RAJ.E. 



Rhinobatidae Rhinobatins productns 370 



Turpedinidaa Narcine californica -371 



Raiidse Raja cooperi 372 



TJraptera binoculata 373 



Myliobatidae Rhinoptera vespertilio 375 



Order X. DERMOPTERI. 

 Suborder MARSIPOBEANCHII s. CYCLOSTOMI. 



Petromyzontidae Petromyzon tridentatus 377 



ciliatus 378 



lividus 379 



plumbens 380 



astori 380 



AmmoccBtes cibarins 383 



Explorations and Surveys for a Railroad route from the Mississippi Eiver 

 to the Pacific Ocean. | War Department. | = | Route near the 33: h and 

 39th parallels, explored by Captain J. W. Gunnison, and near the 41st | 

 parallel, explored by Lieutenant E. G. Beckwith. | | Zoological Re- 

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

 ent article belongs will be found in Vol. II of the 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. | = | 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, 

 x!6,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.) 



