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In the following list, currently-used names of islands are given; when available, older names and variant spellings are indicated in parentheses. For certain islands, especially those visited by field parties from the Bishop Museum or those frequently mentioned in previous literature on bats, some descriptive and ecological information also is provided.

Latitude and longitude of islands are from publication no. 881 of the Hydrographic Office of the United States Navy Department (Anonymous, 1944); names of islands were checked against a list by Brigham (1900); descriptive information mostly is from reports by Temple and Straatmann (1964, field notes, at the Department of Entomology, Bishop Museum).

ALU.—7° 07' S, 155° 54' E.

BANIKA.—9° 05' S, 155° 13' E.

BARA (Gera).—9° 31' S, 160° 31' E.

BELLONA (Bello).—11° 18' S, 159° 48' E.

BOUGAINVILLE (Mamamolimo).—6° 12' S, 155° 15' E. This is the largest island in the Solomon Group, being 127 miles long (northwest to southeast) and about 59 miles across at the widest place. The highest elevations are 9850 and 10171 feet, at the tops of active volcanoes. Ecologically, Bougainville is mostly dense rain forest, which is less dense on the summits of higher mountains.

BUKA.—5° 15' S, 154° 38' E.

CHOISEUL.—7° 04' S, 157° 01' E. This island, formed along a northwest-southeast line of low mountains (maximum elevation of 3500 feet), is about 90 miles long and 20 miles wide. Most collecting was at Malangona (Sasamunga on some maps) on the southwestern coast.

FAURO.—6° 55' S, 156° 07' E. This small island, about 14 miles long (north-south) and six miles wide (east-west), lies about 10 miles south and east of Bougainville. Fauro is formed around a volcanic cone having a maximum elevation of 1925 feet; it has considerable dense mangrove swamp along the west coast, and mature rain forest with little understory growth. Most collecting was at Toumoa, on one of two southern peninsulas.

FLORIDA (Nggela).—9° 05' S, 160° 16' E. Florida, the main island in the Nggela Island Subgroup, is mountainous and except for some small grassy areas, supports dense rain forest. It is nearly 25 miles long (east-west) and nine miles wide (north-south), with a maximum elevation, at Mount Barnett, of about 1366 feet. Most collecting was at Haleta, on the southwestern coast. At this locality there were scattered mangrove swamps, rain forest, and gardens inland.

GANONGGA (Ronogo, Ronongo).—8° 03' S, 156° 35' E.

GATUKAI.—8° 47' S, 158° 12' E.

GHIZO (Gizo, Keso).—8° 05' S, 156° 59' E.

GOWER (N'dai).—7° 54' S, 160° 34' E.

GUADALCANAL (Guadalcanar).—9° 15' S, 159° 35' E. Guadalcanal is mostly of volcanic origin and has an irregular chain of mountains along the southern coast. The highest elevation is 8005 feet at Mount Popomanasiu. This large island is nearly 80 miles long (east-west) and 25 miles wide (north-south). Most of the northwestern part of Guadalcanal supports alang-alang grass. The remainder of the island is heavily wooded.

KILINAILAU (Cartaret).—4° 44' S, 155° 28' E.

KOLOMBANGARA (Duki, Kulambangara).—8° 00' S, 157° 05' E. Kolombangara, formed from an extinct volcano, is about 18 miles in diameter and nearly circular. The highest peaks, rising as precipitous cliffs in some places, reach a maximum elevation of about 5000 feet. The vegetation is mostly virgin rain forest. Mangrove swamp and small coconut groves occur along the coast. Field parties from the Bishop Museum were able to reach the highest elevations, and concentrated their work along the southwestern side of the island.

Fig. 2. Solomon Islands. Principal islands are named.

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.