Micronycteris, Gray, 1866

Siles, Lizette & Baker, Robert J., 2020, Revision of the pale-bellied Micronycteris Gray, 1866 (Chiroptera, Phyllostomidae) with descriptions of two new species, Journal of Zoological Systematics and Evolutionary Research 58 (4), pp. 1411-1431 : 16-17

publication ID

https://doi.org/ 10.1111/jzs.12388

DOI

https://doi.org/10.5281/zenodo.4448053

persistent identifier

https://treatment.plazi.org/id/03CB87B1-FF8D-FFB8-FC97-EC7A2FBA19C6

treatment provided by

Donat

scientific name

Micronycteris
status

 

4.5 | Key to Micronycteris View in CoL species

1. Ventral fur color paler than dorsal fur (gray,buff, or white) …………2

1'. Ventral fur color dark, as the dorsal fur ………………………………………8

2. Lower incisors hypsodont. All lower premolars very robust and similar in size, or p3 slightly smaller. Rostrum is triangular in dorsal view …………………..…………………………………………………… M. schmidtorum View in CoL

2'. Lower incisors brachydont. Lower premolars less robust with p3 slightly (p2≈p4>p3), or much smaller than p2 and p4 (p2>p4>p3). Rostrum not triangular in dorsal view ……………………………………………3

3.Ventral fur color gray or buff,but never pure white.……………………4

3'. Ventral fur color pure white, at least in the neck and chest ……… 6

4. Tall cranium, with a slope of 30°-35° in relation to the rostrum. Mastoid breadth shorter than zygomatic breadth MB<ZB ……………… ……………………………………………………………………………………… M. brosseti View in CoL

4'. Cranium not tall, with a slope less than 26° in relation to the rostrum. Relationship between zygomatic and mastoid breadths variable …………………………………..…………………………………………………………… 5

5. Low sagittal crest over the parietals. Basisphenoid pits deep. P3 and P4 similar in size, or P3 slightly shorter. Restricted to western Ecuador …………...……………………………………………………… M. simmonsae View in CoL

5’. Sagittal crest absent or, if present, it is over the first third, first half, or first two thirds of the parietals. Basisphenoid pits shallow or deep (shallow in individuals from northern South America). P3 shorter than P4 ……………………………........…………………………… M. minuta View in CoL

6. Short palatines, with the sutura palatomaxillaris between M2 and M3. Rostrum elongated and pyriform. ……………………………… M. yatesi View in CoL

6'. Longer palatines, with the sutura palatomaxillaris between M1 and M2. Short rostrum, variable shape. ………………………………………… 7

7. Rostrum short-oval. Low sagittal crest over the first third or first half of the parietals.P3 oval in occlusal view.Central American distribution ………………………………………………………………………… M. tresamici View in CoL

7'. Rostrum short-pyriform.Sagittal crest absent.P3 round in occlusal view. Distribution in Brazil ………………………………………… M. sanborni View in CoL

8. Lower incisors hypsodont ……………………………………………………… 9

8'. Lower incisors non-hypsodont ……………………………………………… 10

9. Forearm longer than 40.9 mm. Prominent nuchal crest. Medial upper incisors (I1) long and narrow …………………………………… M. hirsuta View in CoL

9'. Forearm shorter than 39.5 mm. Nuchal crest absent. Medial upper incisors (I1) short and robust. Endemic to St. Vincent Island …………… ………………………………………………………………………………………… M. buriri View in CoL

10. Forearm longer than 37.7 mm. Known from the Amazonian lowlands (NE Peru) …. …………………………………………………………… M. matses View in CoL

10'. Forearm shorter than 37.1 mm …………………………………………… 11

11. Greatest length of skull longer than 20.8 mm. Endemic to northwestern Ecuador ……………………………………………………… M. giovanniae View in CoL

11'. Greatest length of skull shorter than 20.1 ……………………………………………………………………… M.megalotis View in CoL complex*

* Includes M. microtis View in CoL and M. megalotis View in CoL that are currently undefined.

Kingdom

Animalia

Phylum

Chordata

Class

Mammalia

Order

Chiroptera

Family

Phyllostomidae

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