Murina lorelieae ngoclinhensis Tu and Hassanin, 2015

Tu, Vuong Tan, Cornette, Raphaël, Utge, José & Hassanin, Alexandre, 2015, First records of Murina lorelieae (Chiroptera: Vespertilionidae) from Vietnam, Mammalia (Warsaw, Poland) 79 (2), pp. 201-213 : 209-210

Murina lorelieae ngoclinhensis Tu and Hassanin , ssp. nov.

Holotype

MNHN 2013-1078 ( Field number VN 1563, tissue code VN 11- 1220), adult male, in alcohol skull removed, collected 3 December 2011 by Alexandre Hassanin and Vuong Tan Tu. Mass: 5 g. Measurements (in mm) for the holotype are as follows: FA: 33.00; Tib: 19.00; Ear: 14.00; Tragus: 8.08; 3 DM: 30.19; 4 DM: 29.03; 5 DM: 29.07; 3D1P: 14.17; 3D2P: 12.81; 4D1P: 10.48; 4D2P: 9.04; 5D1P: 11.07; 5D2P: 10.80; GLS: 16.23; CIL: 14.57; ZB: 8.83; MB: 7.65; BBC: 7.40; POC: 4.30; IC: 5.20; CM 3 : 5.34; M 2 M 2: 5.50; CC:3.87; ML: 10.84; CM 3 : 5.64; HCP: 4.23. The sequence of the mitochondrial gene COI has been deposited in the EMBL / GenBank / DDBJ nucleotide databases with accession number KF772780 .

Type locality

Ngoc Linh Nature Reserve , Kon Tum province, Vietnam. 15°03.884 N, 107°49.888 E, elevation 1682 m a.s.l.

Paratypes

– IEBR-Tu281111.1 (Field number VN 1504 – tissue code VN 11-1161), Ngoc Linh Nature Reserve, Kon Tum, Vietnam, 15°04.766 N; 107°49.833 E, elevation 1117 m a.s.l., adult female, in alcohol skull removed, collected 28 November 2011 by Alexandre Hassanin and Vuong Tan Tu, accession number of COI sequence: KF772779 .

– MNHN 2013-1079 (Field number VN1566, tissue code VN 11-1223), Ngoc Linh Nature Reserve , Kon Tum, Vietnam, 15°03.884 N, 107°49.888 E, 1682 m a.s.l., adult female, in alcohol skull removed, collected 3 December 2011 by Alexandre Hassanin and Vuong Tan Tu, accession number of COI sequence: KF772781 .

Etymology

The name “ ngoclinhensis ” is derived from the Mount Ngoc Linh of the Ngoc Linh Nature Reserve, Kon Tum province, Vietnam, from which all specimens of this subspecies were collected.

Diagnosis

Murina lorelieae ngoclinhensis is externally similar to the typical form, M. l. lorelieae , but significantly larger in body size ( Table 1 ). In addition, the skull shape of the new subspecies is elongate and gradually rises from the rostrum to the forehead ( Figure 3 ), while that of the holotype is characterized by an abruptly rising profile.

Description

This is a small bat species, generally similar to Murina lorelieae lorelieae ( Table 1 ). The pelage is characterized by long shiny hairs (8 mm ventrally and 13–15 mm dorsally), with distinct colorations on dorsal and ventral surfaces, copper reddish-brown and dirty white, respectively. Dorsal hairs are tricolored: dark gray basally, pale in the middle and reddish brown at the tip. Ventral hairs are bicolored: dark gray in about two thirds of the length and whitish at the tip ( Figure 5 ). The skull is domed. The lateral profile of the anterior part of the skull gradually rises from the rostrum to the forehead ( Figure 3 ). The sagittal crest is lacking; the lambdoid crests are visible. The maxillary toothrows are convergent anteriorly ( Figure 3 ). The dentition is quite robust. The second upper incisor (I 3) is situated posterior to the first (I 2), and I 2 is visible laterally. I 2 and I 3 are subequal in height ( Figure 4 ) and are much less than half the height of the upper canine (C 1). Upper (C 1) and lower (C 1) canines are well developed, exceed the height and subequal the basal areas of the corresponding second premolar (P 4 and P 4). The crown area and the height of the first upper premolar (P 2) are two thirds more than those of P 4 ( Figures 3 and 4 ). The first (M 1) and second (M 2) upper molars have well-developed mesostyles and curved labial (outer) faces ( Figure 4 ). The paracone, metacone, and protocone of the first (M 1) and second (M 2) upper molars are distinctly defined.

Figures

Figure 3 Lateral views (left) and occlusal views (right) of skulls of the four MUrina species collected in Ngoc Linh Nature Reserve (Vietnam). (A) MUrina feae (MNHN 2013-1080,); (B) MUrina cyclotis (IEBR-031211.1,); (C) MUrina lorelieae ngoclinhensis ssp. nov. (holotype MNHN 2013-1078,); and (D) MUrina hUttoni (MNHN 2013-1082,).

Figure 4 Front view of upper incisors (left) and occlusal views of upper left toothrows (right) of the four MUrina species collected in Ngoc Linh Nature Reserve (Vietnam). (A) MUrina feae (MNHN 2013-1080,); (B) MUrina cyclotis (IEBR-031211.1,); (C) MUrina lorelieae ngoclinhensis ssp. nov. (holotype MNHN 2013-1078,); and (D) MUrina hUttoni (MNHN 2013-1082,).

Figure 5 Pelage and detailed pattern of hairs (scale =5 mm) on ventral (top) and dorsal (bottom) surfaces of the four MUrina species collected in Ngoc Linh Nature Reserve (Vietnam). From left to right: (A) MUrina feae (MNHN 2013-1080,); (B) MUrina cyclotis (IEBR-Tu031211.1, ); (C) MUrina lorelieae ngoclinhensis ssp. nov. (holotype MNHN 2013-1078,); and (D) MUrina hUttoni (MNHN 2013-1082,).