小型紅鉛筆產地分佈廣泛, 以下是節錄自seriouslyfish 對該種的產地報告:-
Type locality is ‘Maduni Creek, Guyana’, and this species is widely-distributed throughout Guyana and Suriname, plus the middle-to-lower Amazon basin east of the Andes mountains in Peru, Colombia, and Brazil.
Records thus exist from various major river systems including the Rupununi, Takutu, Essequibo and Demerara in Guyana, the Nickerie and Courantyne/Corantijn in Suriname, Inírida and Caquetá in Colombia, the Ucayali, Javari, Ampiyacu, and Putumayo in Peru, the Napo in Ecuador and Peru, Juruá in Brazil, and throughout most major left-bank tributaries of the Amazon in Brazil, including the Japurá, Negro, Branco, and Trombetas.
Records from the upper Río Orinoco in Venezuela also exist but may require confirmation.
Seriouslyfish 對該種的報告原文
