MALAITA (Mala, Malanta, Malayta).—9° 00' S, 161° 00' E. This long (104 miles northwest to southeast), narrow (about 23 miles at its widest spot) island, between Santa Ysabel and San Cristobal islands, is basically of volcanic origin with some limestone (coral) deposits along the coast. Mount Kolovrat, having an elevation of 4275 feet, is the highest point. The Bishop Museum field party lived at Dala, in dense rain forest about 12 miles north of Auki on the northwestern coast of Malaita.

MALAPA.—9° 49' S, 160° 53' E.

MONO (Treasury).—7° 22' S, 155° 35' E. This is a small island (maximum elevation 1150 feet) in the Treasury Island Subgroup just south of Bougainville. Mono is about nine miles long (east-west) and five and one half miles wide (north-south). The basic volcanic core is described in field notes as topped with coral limestone.

NEW GEORGIA (Kausagi).—8° 20' S, 157° 30' E. The New Georgia Subgroup is composed of 11 moderate-sized islands and islets. New Georgia Island, the main member of the subgroup, is 50 miles long (northwest to southeast) and from five to 30 miles wide. On the northern side several volcanic peaks attain an elevation of about 3000 feet. The entire island is forested.

NGGELA (Florida Islands).—4° 31' S, 154° 11' E. This subgroup consists of several small to medium-sized islands between Guadalcanal and Malaita. Florida is the main island.

NISSAN (Green, Sir Charles Hardy's).—4° 31' S, 154° 11' E.

NUKUMANU (Le Maira, Tasman).—4° 32' S, 159° 25' E.

ONTONG JAVA (Lord Howe Atoll, Liuniuwu).—5° 25' S, 159° 30' E.

PAVUVO.—9° 04' S, 159° 08' E.

RAMOS.—8° 16' S, 160° 11' E.

RENNELL.—11° 38' S, 160° 14' E. This island, of limestone (coral) origin, along with Bellona, is nearly 100 miles southwest of any other member of the Solomons and has been regarded, because of this distance, as an oceanic island instead of a continental island. It is about 50 miles long (east-west) and nine miles wide (north-south); its highest elevation is 500 feet.

ROVIANA (Rendova, Rovianna, Rubiana).—8° 21' S, 157° 20' E.

RUSSELL.—9° 04' S, 159° 12' E.

SAN CRISTOBAL (San Christoval, Bauro, Makira, Arussi).—11° 33' S, 161° 43' E. This island is composed mostly of ancient volcanic rock, has a maximum elevation of 4100 feet, is nearly 70 miles long (northwest to southeast) and 24 miles wide, and supports a dense rain forest.

SANTA YSABEL (George, Ysabel, San Isabel, Isbel, Mahaga).—8° 00' S, 159° 07' E. Santa Ysabel is a long (90 miles from northwest to southeast), narrow (19 miles at the widest spot), forested island, consisting of a single chain of volcanic mountains. The numerous bays and mouths of rivers provide excellent anchorages. Collecting was at Tatamba approximately two miles south of Tanambuli where the considerable area of forest was dense and bamboo thickets were abundant.

SAVO (Savu).—9° 08' S, 159° 49' E.

SHORTLAND.—7° 03' S, 155° 47' E.

SIKAIANA (Stewart).—8° 22' S, 162° 44' E.

SIMBO (Narovo, Naorovo, Naravo, Navoro, Sembo).—8° 16' S, 156° 31' E.

STIRLING.—7° 25' S, 155° 35' E.

TANABULI (Tanambuli, Tunnibili, Tunnibilis, Tunnibul, Tunnivula).—8° 24' S, 159° 35' E.

TAUU (Marqueen, Mortlock).—4° 48' S, 157° 32' E.

TELIPARI.—8° 15' S, 157° 32' E.

UGI.—10° 14' S, 161° 44' E.

VANGUNO (Vangunu).—8° 39' S, 158° 00' E.

VELLA LAVELLA.—7° 43' S, 156° 40' E. The coastline is rugged and indented by numerous small bays. Some peaks are 3000 feet high. The southeastern half of Vella Lavella is said to consist of uplifted coral, and to be thickly planted to coconut palms. The native population is concentrated here. The northwestern half of the island is rain forest and is nearly uninhabited. Most of the collecting was at Pusisama, on the southern beach and on Ulo Crater, an extinct volcano at the middle of the island.

YANNTA.—10° 20' S, 161° 20' E.

The phylogenetic arrangement and nomenclature in the text beyond are mainly that of Laurie and Hill (1954). The synonymies for accounts of genera are as follows: (1) first use of the generic name employed along with the original description, and (2) original proposals, in chronological order, of other generic names subsequently applied to the bat in the Solomons. The synonymies in accounts of species and subspecies are as follows: (1) first use of the accepted name, followed by its type locality, followed, in chronological order, by other references to the first name-combination, (2) first use of the name-combination employed herein (if different from the original combination), followed, in chronological order, by other references to the present name-combination, and (3) other name-combinations, in chronological order, employed for the bat in the Solomons. The word "part" is used in parentheses after a name if some specimens listed under that name are from the Solomon Islands and are referable to the species or subspecies being written about.

Unless noted otherwise, specimens listed as examined were prepared originally as museum skins with skulls. Approximately 70 per cent of bats collected in the Solomons were preserved in formalin and now are stored in alcohol. Because it was necessary to obtain dimensions and examine various morphological characteristics of skulls, many crania were extracted from bats preserved in alcohol.

Although all specimens in the Bishop Museum from the Solomon Islands have been catalogued with the prefix BBM-BSIP, catalogue numbers without prefixes in the lists of specimens examined refer to this museum. Catalogue numbers with the prefix USNM refer to specimens in the U. S. National Museum and those with the prefix AM-M refer to specimens in the Australian Museum.

Unless indicated otherwise, all measurements in this paper are in millimeters and are of adults. Cranial measurements, and external measurements of specimens stored in alcohol, were taken by me. The cranial measurements were taken with dial calipers using techniques described by Hall (1946:672-685). External measurements (except length of forearm) of specimens originally prepared as dried study skins, were transcribed from specimen labels.

Capitalized color nomenclature is from Ridgway (1912). Noncapitalized color terms are from published reports that did not use Ridgway's terminology.

Financial support for this investigation was from (1) a United States Army Medical Research and Development Command grant (DA-MD-49-193-62-G65) to the Entomology Department of the Bernice P. Bishop Museum, and (2)