Ht atte 
_ Perhaps we may, without violence, call these the mountaineers 
among fishes. Forced from the populous and fertile valleys of the 
river beds and lake bottoms, they have taken refuge from their 
enemies in the rocky highlands where the free waters play in cease- 
less torrents, and there “they have wrested from stubborn nature a 
meagre living, Although diminished in size by their continual 
struggle with the elements, they have developed an activity and 
hardihood, a vigor of life and clow of high color almost unknown 
among the easier livers of the lower lands. 
_ The appended table will facilitate a comparison of the records of 
the different genera. The percentages were obtained by estimating 
carefully the ratios of each element of the food of each individual, 
and averaging these ratios for all the individuals of a species: 
DETAILS OF THE Foop oF THE HE THEOSTOMATIDA. 
Ol) el elu) so) al el] | eS 
Boas) oe Peake hes | eonteey 
S ro) Oo |-a@ Oo ~ Oo OQ |r 
me ae) (eo) = ° ro) pate 
OF a Bele eB eee S| eee eS 
ol See au aeepee 1a. es 
So }a/B enile Betas, |e a3 
2 » | Pie | a) 
wa ; ’ Sees 
ee ber DEMONS uote: vide weno ee tekink oe tales EN LZ Le erst 1h eee ne G |S) ee 
VCO IEUIS CVANE oe oe See ioe See tteae Meta erase feed (Paar ra) bene (ppt Myre ame Uk att Ae pet 
BCU LUS VINE OTIS SAY). 662 yi adelaide cnnse sc baeses Rc) ee eer ines eA ae! | Pea Se re 3 
| CTT NSE OTN A ae Gene nT tee Are eee er etcie ve ea’, a'e 100; 99} 96) 100} 65, 100} 88} 100) 36 
MUTED POT ere rete. ic he on hee ou RSC ech okies. 93) 07) 73) 58} 43] 100] 61; 387) 34 
LHPOBGEEMINGd IATVGG.. .. 0. ceccnaerseer sass os e's 1301) 07) 9 094 OP m Sble.. te TOr ees 
F GHirGnoOmus larva... Joys eloscenes =a eee heeled 81] 06) 66, 49} 41] 65) 61) 27) 34 
Bee LCUEAD CON) ee Soe ioe ccs ass oo ca Paeeinea st. emaene eee ee | be 1S es ih eee tee. (Ey | RS eee ee eee a 
_ Ort eae, met cS a A eae s 1 S3 an alle eee 0 hanes [ieee on omer Ih at oe 
| WNGetOnolredis eos ee) Lote cee ee einmoee cee eae ee Salle AON eae Fe OS |e ee [ect bert 
LGV ee aaa ee cera ee ars cea Solas V7 Pe es ne OD ee ere lire oo 
GREETS) Lime eee eg Oe nc ale ene So cce be oct Weer Gs. ea Sea (pare ede php |e eed ed hg 
Re NBT ODLOnG es Sods a Bot tesa dated tae oe aot s x HMA psy BRA Bat A Carl Bp 
SDT OTIPGT LG Gog wee ccs anita dee emeeee ae ec ee incls OF eb OSs oi U9) see 2c Oo 02 
LEY) CONG Soe ae te See oo eee States em as ae El oa ltsleey= Lait (ets I Oe ee ares oe 
Ea Vere eer ere as cee tan aL), oa .. OZ 6Sh 208 sa lSil LOS ees ee tenGol. 02 
‘ PP ON. oo setae doce dane cake eee ones ee re aaNet Semen nha tee VGA Crs 3) a 
APTIONIG@ (PUP) ise eae ccs feces bt peor saa | eu OA Neeircyas| ears sre eta erates Sts | Rigi | ake ae 
Phryganeidez (TEE) ee re eee ce oreo ee Slee lO lanl BUS etcaa |e eter lense 
TAO CSIC HA ane vee Seven eM cei nase oe Beez OLI04 |= Pool ag taal ala eaias OF 
RATT SEDO. Aah jtce oe a sae een eciceteeecees etal peepee cee oleae (ST ce Pewee mie toe Des 
PPA POS VE ere cae wns cc ns cre erect dene tn ad 5m DP baes i lag |e hy ea A pole Fe Se ii 
COVEN CO VER Rint an Cron | eee ee eee oe syaicscats ANE SB acon 2k 8 PR | ae aes |eeret| 06 
AL LONGRASTCS OCTILALG, BIN so. peeeoeteeee bon. sclceec ee Ras | Dee be aN a Ee oie tal cI a ol Da 
ED LAL COCCT Ge se ce rik Date coaie os Seer ee ee eae eee Ae Ege te eek fee aime Need Mee aha ol Ei i 
MYM etCrMGINGG sock F- os dans eee essen wacn ee, ~ a's Peck Deol ds Shit aeaek | BON Bet leet iets be ric 
PDT ieee hore ee wage ote oo nas meee ce sha. eee erent. ohoweme OO ec st ee auele amen tay cred 
DD OER Lepr Bene ee mae mance ON Steere me ron cre wines Ba Pi ped Pp ws ape fe OPA Pa OO ee os a 
re Cua ts att mill ot (eile MAP ay As eRe habe 7 knia OO eeu Caen Daa i eae dele eee OG | ease tare eee. | rere 
TAGE ae er oe LO a a rnd oe San as ei Pa Peas Ane) seuiee sire cmt rane Ta 
TOW Ae Teele eee A oo) 8 a me eon Ma Peay 3.5 Aa ea en Cae eee ah omrerl!” MUN free altars les aor SEL E 
a ip ia Be a Y= epee ee, a nies 8, Sena 2 a ee oe Ya raee ae Se aes cton | eee CT tree Ree? | 
Vn VOT CUSm scenes cece sso os ome eae s ce sa vat a. Ny Oa ed, eee I) NB aS eg RR Re 
SY SI TAOOTR L685. vc bea sady teamed bhacna ds incase as o[ee ee procs Rd caked Wan) UE ete eek we ea SEES 
MOUS LCLIC Cee reser rine cee cite ecole oie ae ecnie eet ccciisete lemets Jee ele Olea o hobs leswepe nD 
WndoOrerminedeee.c ieees cose Rete oe canola saelee Oe ee SE KIRN S nC eg a ate ey att 
AE OOUEDO AU: 2. wads tccee RRA ence Aa eee el OL Oa areal 05| Gas. eS 2 Seo Lo 
OS WCAG Y CYS Shears Ae eee eae LD ta ay ae a er OL Od ees 05) see al TO ee Ts 
Menfervoid Mderas  ade coe oa eee ko ea ndsecgtases tacos Oligd. edad teres see 
* ’ 
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! eel 
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