Pomona College, Claremont, California 53 
has been reported for the adults by previous workers. I think it is worth while, 
however, to go into more detail and to see, for example, whether the young frogs and 
toads change at once to the more or less terrestrial habits of the adults or whether 
they feed largely on the aquatic forms at first. Let us see, too, whether they are 
limited very much by their size as to their range of food, and whether they begin 
their predaceous habits at once or still feed on the diatoms and algae on which they 
grew. 
Perhaps a table comparing the different species will show most readily what we 
desire. In Table 10 the animal forms contained in the stomachs examined have been 
listed, the attempt being made to separate those which are without question aquatic 
from those probably not taken in water. The Collembola, young Anura, and insect 
eggs might have been taken on water or not and are classed as doubtful. It is possible, 
of course, that any of the winged insects might have fallen into water and have 
been seized as they were struggling or floating on the water, but this could scarcely 
have been true of many. Anyone who has watched transforming Anura knows that 
they hop briskly about in the neighborhood of the pond and have every opportunity 
to catch their prey in the air, from the surface of the mud, or from plants. 
TABLE 10 
Relative Numbers of Aquatic and Non-aquatic Animal Forms Found in 
Transformed Individuals. 
Pick- 
Bull- Green erel Meadow Wood Tree 
frog frog frog frog frog Peeper toad Toad 
Protozoalapmimemiscistiomive shits das Acicveiecn'’ 4 1 
WALA D Sram tals ielarelaie aisttlsa/c\dlaycivicveie clei 8 4 8 4 
GrirstateaAand CRS sic. cece sic cb cep eee cee 16 1 15 4 1 
Water Mites ..... nletatniplsteveieisinyoletat vn elass viet 1 1 2 
MUR ETEEAEAMENT SITIETIS' calajp-av.s)e «\v, stare s.4\n.+:0,0 v1 olete 3 3 1 
PATRERCUELOIIIPLELA Nye cscs cies ceeuee ces eens 2 1 
MRMESMIO TEN UL ALM ES. este chelt aleye a]n.(e/oisisie cielo tere 1 1 6 
aguatic Coleoptera ....- 00s eccccuce =n 6 3 5 6 7 
haan. GIRL) Ca SAR SO AGr ICON terete ste 1 
TOTAL AQUATIC FORMS Che 31 18 27 18 22 
COU Se Gi ERR a BORE aie SE LACE eee na 19 3 10 2 
LONER IGEN CIOS SAE Ir stbte Bee Sete Ores 2 1 
ROUNANIET SUA TIUE DNs :0 iccee 5 venice areieie le natoleveciele: 2 
PVOHUELINEMMONINS, ss a seciee sles sisieloie’s qulseters 23 1 3 10 38 2 
Wn od Saudia er tong DuEbCtoaSOtneanoe 10 1 
PEAS SAUDIS | oisis crslaleretors svete wiase myaitin seks Bieivia.e 2 1 if 
eM) CUS CRCOM) faiaisic o!sit. 01 rein olatr ajeiers\dia\bin, ise 1 39 1 
MAOTIS NOOR Bo etyse cleracis cizieseia eisrsielate’e(a,cieiafece 3 
RSPLCUSER ills Sess ccnerethte) <iaiaseleteremicice-cisiein ptacersiviare 1 18 5 1 6 
TANG MAILED Nels ys ai0b sels olalwaivieing kiw dave nelale 17 2 9 5 2 
Biri PENBCCLST i, aicisie <eiateans vicleisieie'eiain wiaiere « 2 4 4 1 4 2 7 I 
MMe COCHIN Praha sc. < 3 hts waa ate waa we ie 5 
BRT oc fain pains nif tede sy a1 jalecersarace ms eia(e.e eis ielx 1 
SSCICKOEA: 26's o)slote Protdhis:s cisjarnteteiss)placatetarsia tiara 1 
WG ORL CT N12) Uk Oe Cee Oeste AT COCR IOI 10 16 21 27 9 4 30 
REINO HOS Neiman tsatecle ps/b urea lctaicvccelacsiets.®: 1 
LE GE, GaSagpo boc ants Sao ree cs Or ote ne 1 12 
Gepidapterous’ Tarvet: ois vse cic vies vecisunis 1 2 3 4 
TE Te RR ep Ota cu SOHO OOFE GOOD cere 6 36 28 35 32 10 6 1 
DAPMGELO US MAU Y aa clalnats tists /sis)ete vec prarsiasleioters 5 2 2 1 
Coleoptera ........... 21 48 13 41 12 2 4 
Coleopterous Larve . “3 4 3 3 
Hymenoptera ....... Fc yalaemtateiaywiec apatite vera. s Mh ale 6 19 9 18 24 7. 17 
TOTAL NON-AQUATIC FORMS....... 71 200 96 139 113 25 66 5 
TOTAL ANIMAL FORMS. ..0.0....050% 125.) (219% 126) “1678 172 25 66 7 
Per Cent Aquatic Forms..... 25% 8% 21% 11% 13% 0% 0% 0% 
Per Cent Doubtful Forms. 18% %% 2% 6% 22% 0% 0% 29% 
Per Cent Land Forms...05....c.e00cce00s 57% 91% 76% 83% 65% 100% 100% 71% 
5 
Number vOL “Stomaches occi o cclr~ s\eecicie nce 29 40 41 40 40 9 8 
"Not further identifiable. 
