Trip Summary: On a two-day stay I saw +14 mammal species including Anderson’s Four-eyed Opossum (Philander andersoni), Bishop’s Slender Opossum and what appears to be Amazonian Marsh Rat (Holochilus nanus). My lodge guide was Luis Mayanchi.

SUMMARY: I saw 40 mammal species on a ten-day trip (20-29 June 2023) in the Tahuayo River Area. The highlight was Streaked Dwarf Porcupine (Coendou ichillus) which were the first in-situ records published for the Iquitos area; the species at the time was reported only from about ten other sites in South America. Peruvian Tree Rat and Long-tailed Spiny Tree Rat were common. Amazon Bamboo Rat was common locally. Eastern Pygmy Marmoset was easily seen at known study sites. Bishop’s Slender Opossum and White-bellied Slender Opossum was seen in the ARC area. Bats seen included Thumbless Bat. I organized the trip through Amazonia Expeditions and stayed at their Tahuayo Lodge and Amazon Research Center (ARC); my lodge-supplied guide was Juan Pacaya.

SUMMARY: On the nights of 20 and 23 June 2023 I photographed Streaked Dwarf Porcupine (Coendou ichillus, Voss and da Silva, 2001) in lowland forest 60 km south of Iquitos (Loreto, northeastern Peru), having found both with a thermal scope whilst in the company of Juan Pacaya (a guide from Tahuayo Lodge). These two records appear to be the first in situ records from northeastern Peru. C. ichillus is a poorly known porcupine confirmed from only nine sites (Ramírez-Chaves et al, 2020). One of the two sites in Peru is the Iquitos area in northeastern Peru where the only known specimen is a juvenile purchased by Pekka Soini in 1971 from a market near Iquitos and its collection point was never known (Voss and da Silva, 2001).