146 Fretp Museum or Natura History — Zoéioey, Vor. X. 
region to the westward. Above this forest was open grassy ‘“‘jalca.’’ 
Altitude 10,000 ft. = 
Rio Utcubamba, May 26, 30. Small collections were made May 26 
in a swampy mountain glade near the source of a western branch of the 
Utcubamba about six miles west of Leimabamba. Altitude 8,000 ft. + 
Later, on May 30 a stop was made on the bank of the river about 
15 miles above Chachapoyas. Altitude 7,500 ft. + 
Chachapoyas, June 2-6. Chachapoyas is situated on an open, prac- 
tically treeless plateau and although some of the neighboring canyons 
in the mountains are well wooded and apparently well watered, the 
immediate vicinity of the city is dry and unfavorable for much animal 
~ life. Altitude 7,700 ft. 
Tambo Ventilla (or Ventija), June 13-19. Amuch ccvanien tambo 
in a mountain valley just below timberline near the source of the 
Huancachaca River which joins the Utcubamba below Chachapoyas. 
It is about 10 miles east of Molinopampa and perhaps 20 from Chacha- 
poyas. The region is one of great humidity and relatively low tempera- 
tures. Altitude 10,000 ft. + . 
Tambo Almirante, June 22-24. A tambo situated approximately 
40 miles east of Chachapoyas in a small clearing in dense humid forest 
on the east slope of the high cordillera between Chachapoyas and 
Moyobamba. The telegraph station of Uchco is situated some six 
miles below. Altitude 5,000 ft. + 
Poco Tambo, June 28-29. A tambo near which are a few small 
farms surrounded by heavily forested mountains one short day’s travel 
beyond Tambo Almirante. This is near the foot of the Andes and a 
few miles beyond is the so-called ‘‘ Bajada de la Ventana” from the top 
of which one looks over an apparently limitless plain. Altitude 4,000 ft. 
Tambo Yaku, July 1-6. A well known tambo on the relatively 
level plain about 30 miles west of Moyobamba. It is situated at the 
edge of heavy forest but the vicinity is characterized by large open 
grassy campos alternating with irregular light forest of small trees 
and bushes with many heavy growths of brake ferns and club mosses. 
The village of Rioja is some eight miles to the eastward. Altitude 
3,000 ft, 
Moyobamba, July ro-Aug. 11. Moyobamba is situated on a bench 
just above the bank of the Moyobamba River which at this point is 
navigable for launches and light draft boats although communication 
with the Huallaga is broken by rapids farther down stream. The 
surrounding plain is but slightly broken and the forest is mostly light 
and bushy with frequent clearings not all of which are artificial. Never- 
