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22

THE WEST. THE ROAD IS QUITE GOOD, AND RUNS TO THE LAKE
IN THE CRATER. TREE LINE IS AT 13,000 FT. , AND I COLLECTED
A SCELOPORUS MICROLEPIDOTUS UNDER A LOG RIGHT AT TREE LINE.
WE WENT BACK DOWN HILL TO 13200 FT. TO CAMP. THERE WERE
SEVERAL SPRINGS IN AN ALPINE MEADOW AND A GOOD SIZED
CREEK. A ROCK IN THE MIDDLE OF THE STREAM COVERED THE
AMBYSTOMA, WHICH I COLLECTED. FARTHER DOWN THE STREAM
A ROAD BRIDGE HAD DROPPED IN AND CREATED A POND,
TO WHICH I RETURNED IN THE EVENING TO FIND MANY AMBYSTOMA
ACTIVE. IT APPEARED TO BE A BREEDING CONGRESS, AND I TOOK
MANY NOTES ON THE GROUP. ALL SPECIMENS COLLECTED SEEMED
TO BE MALES, HOWEVER, WITH GREATLY SWOLLEN ANAL LIPS. SEVERAL
DEPOSITED SPERMATOPHYTES AFTER BEING PUT IN PRESERVATIVE.
COMPLETE NOTES ON MY OBSERVATIONS ARE ELSEWHERE; UNDER
THE SPECIES.

MARCH 15, TOLUCA

FOUND 3 S. MICROLEPIDOTUS UNDER A SINGLE PIECE OF
BARK ON A FALLEN LOG ON A HILLSIDE, AT 12,200. THE REST
OF THE DAY WAS SPENT IN OBSERVATION OF THE SALAMANDERS
IN THE POND. THE EVENING WAS QUITE COLD, AND THE POND FROZE
SOLIDLY DURING THE NIGHT. MY THERMOMETER REGISTERED 22[symbol degrees] AT
7:00 AM MARCH 16. THE SALAMANDERS ACTIVITY STOPPED AT
ABOUT 11:00 PM., BECAUSE OF THE COLD.

MARCH 16, TOLUCA.

WE LEFT THE CAMPSITE VERY EARLY AND DROPPED DOWN
TO 11,500 FT. I GOT A LARGE SERIES OF SCELOPORUS
HERE, ON THE ABUNDANT FALLEN LOGS. IT WAS STILL
IN THE PINES HERE. I GOT MICROLEPIDOTUS CHIEFLY, WITH
SOME AENEUS.

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23

MARCH 17, A CERRO SAN ANDRES, MICHOACAN.

SPENT THE NIGHT OF 16TH IN CIUDAD HIDALGO, AND
DROVE ON TO THIS SHORT CHAIN OF PEAKS. THE ROAD IS 4
MILES WEST OF HIDALGO, TURN LEFT AND FOLLOW ROAD TO
SAN PEDRO (DE AGUARRO, OR SOMETHING SIMILAR), WHICH IS
TWO MILES FURTHER, ON THE DIRT ROAD. OUR CAMP IS FURTHER
ALONG THE SAME ROAD, 9 MILES ON THE SMALL VILLAGE
CALLED RANCHO DE AXOLOTL IS JUST OVER THE HILL FROM
OUR CAMP. WE DROVE ON A CONSIDERABLE DISTANCE FURTHER
TO A GOOD SIZED LAKE, CALLED LAGUNA LARGA, AT 9,200 FT.
THE LAKE IS ARTIFICIAL, THE RESULT OF DAMMING A SMALL
STREAM BETWEEN TWO MOUNTAINS. I COLLECTED RANA PIPIENS,
SCELOPORUS MICROLEPIDOTUS AND AN AMBYSTOMA ON ITS SHORES.
DROVE WITH MCVAUGH TO A LARGE SULPHER LAKE, FULL OF
BOILING HOLES. IT LOOKED LIKE A MUDDY MESS, BUT THE WATER
WAS NOT [illegible] AT ALL. A BLOWHOLE NEAR THE LAKE WAS
RIGHT AT BOILING, AND HAD BEEN USED OFTEN TO SCALD
FEATHERS OFF CHICKENS. I CAUGHT 2 PIPIENS ON A HILLSIDE
IN A COLD SPRING.

A SHORT STOP WHILE MCVAUGH TOOK SOME SPECIMENS
OF "CAPULIN" THE CHERRY HERE, NETTED ME A HYLA WHICH
IS EITHER A [illegible] OR [illegible]. I THINK I HAVE SEVERAL OF
THE 1ST FROM HERE. THERE WAS LITTLE WATER HERE, BUT
AN ALMOST DRY SPRING DAMPENED THE AREA SLIGHTLY. I
ALSO PICKED UP A SCELOPORUS HERE. HYLA DESCRIBED ON
NEXT PAGE.

MARCH 18, 1949. CERRO SAN ANDRES.

FOLLOWED A STREAM WHICH EMPTIES INTO THE ALPINE
MEADOWS IN WHICH WE ARE CAMPED UPSTREAM. FOUND AMBYSTOMA
ORDINARIUM, RANA PIPIENS AND S. MICROLEPIDOTUS ALONG AND IN THE
STREAM.