796 



THE AMERICAN NATURALIST 



[Vol. XLI 



systems." On tlie whole Gregory inclines to the American syst(^ni 

 and approves oF "(iiU's [)rinciple of keeping groups apart until they 

 are shown to belong together." No linear series and no groui)ing of 

 these fishes into orders and suborders can ever be satisfactory to any- 

 one, for the forms in question exhibit a great variety of interrelations 

 and divergences. The (classification of Dr. Gregory is however about 

 as satisfactory as any one which is current, and it represents a great 

 amount of careful investigation and comparison. 



Ecologi/ of Fishes: In the Journal of Geology (1907) Dr. John C. 

 Branner discusses the coastwise streams al)out MontcMvy Bay, with 

 reference to {present distribution of the fish fauna. II(^ shows that 

 the latter is dependent on the former courM-^ of th.->e streams. 



In the Bull. Bureau of Fisheries (XXVI for 1000) Prof. Chauncey 

 Juday gives an elaborate study of the Twin Lakes in Colorado, with 

 especial reference to the food of the trout, Salmo stomias. 



In the Kept, of tlie Director of the New York Aquarium, Mr. 

 Charles fl. Towns ■ii.i. (liscnss s the cultivation of fishes in ponds. 



Analnnn, n] / . I„ ,i biological Bulletin (XII, 1907) Dr. H. 

 I). >(Miinr di.Mi^M.. lh.- ,nn„- art.TioMi. of tuo (.f the nuM ]>rimiti^e 

 of h.>n\ li.h<'>, larpiw nllnni]ru< and Mxinlnp-^ prnmHh ^^\\U 

 comparison with that of <.thrr ivlatcl forms. In All.i'ila. Tarpon, and 

 Mcgalnp. ihcn- an- \^^n rou. of n.iIv.-. Onhnarx l.on.x (i.lic haNC 



InElops.(-h;,n..^. lli,Ml.m,()^tcon-lo..,Mn. .\otoptoru. and Mornix rop>, 



the ^l<-gal<,pida'r, (Mc-alop., Tarpon) ^liouid constitiTe a family 

 distin. t from Klops. 



In the Pioc. W.i.Ii Ar.nl. .sm(mi< e., 1907, Mr. W. F. AHen of Stan- 



ons vcs...|s of'th.' head in t he u'a r ] )ikr a nd pa.hhe fish. 



In the lindwvlt Mrmorial Vohnn.> ,( amhriduv. Fno-land), Dr. J. 

 Graham K.^u of the I'niNcrHtv of ( iK.-dow . .h^r, uith i^reat com- 

 l.h'icn<-.. thr (•ml.rNol..u-^ of tin- crosM.pt.'rxgian fish. I'nhiplrrus sene- 



the vertebrate li'mb from modifie(l giUs rather thai'i from a lateral fold 



