Mandibular | | | tooth-row | 10.3 (10.0- 10.6)| 10.5 (10.2- 11.1)| 10.9 ( 10.7- 11.4) ---------------+------------------+------------------+------------------- _Measurements._--Measurements of the two subspecies from the Solomons are given in Table 3. Some measurements of the type are as follows: Length of head and body, 108; tail vertebrae, 20.5; hind foot, 14.7; ear, 11.3; length of forearm, 55.1; 2nd metacarpal, 27.4; 3rd metacarpal, 39.0; 4th metacarpal, 37.5; 5th metacarpal, 39.1; greatest length of skull, 28.6; condylobasal length, 27.5; zygomatic breadth, 18.4; length of maxillary tooth-row, 9.0; length of mandibular tooth-row, 10.4. _Remarks._--_Nyctimene albiventer minor_ closely resembles _N. albiventer bougainville_, differing from the latter mostly in size. Although adults of _minor_ average only slightly smaller than adults of _bougainville_ (see Table 3), there is only slight overlap (about 0.2 at most) in most minimum dimensions of external and cranial features of _bougainville_ and corresponding maximum dimensions of externals and crania of _minor_. The difference in size is clearly shown in Figs. 13 and 14. Four specimens of _Nyctimene albiventer_ from Fauro herein are considered to be intergrades between _N. a. bougainville_ and _N. a. minor_. As shown in Table 3, the specimens from Fauro average slightly larger than those of _minor_ from Choiseul and Santa Ysabel and slightly smaller than specimens of _bougainville_ from Kolombangara and Guadalcanal. I have assigned the specimens from Fauro to _N. a. minor_ because they generally are closer to _minor_ in size (see Fig. 13). _Specimens examined_ (five males and four females; seven in alcohol; seven crania extracted and cleaned).--Choiseul in February and March, 23636 (holotype), 23631, 23540, 23646; Santa Ysabel in February, 23539; Fauro in April, 23742, 23743, 23763, 23764. One specimen of _Nyctimene_ from Malaita Island is smaller than _Nyctimene major_, which is known from Shortland, Alu, Florida, New Georgia, Guadalcanal, Choiseul, and Malapa (see Fig. 15) and is larger than either of the two subspecies of _Nyctimene albiventer_ known from Bougainville, Fauro, Kolombangara, Guadalcanal, Choiseul, and Santa Ysabel. This specimen represents a previously unknown species and may be named and described as follows: =Nyctimene malaitensis=, new species _Type._--Adult female, skin and skull, in good condition (originally stored in alcohol for about one year), no. BSIP 24103, Bernice P. Bishop Museum; from Malaita Island, British Solomon Islands Protectorate; obtained on 1 July 1964, by Peter Shanahan, original no. unknown. _Distribution._--Known only from Malaita (see Fig. 16).