152 



B. bimae n. spec. 

 ■\B. calceolus Ellis. 



B. carenatus Gruvel . 



B. ciliatus n. spec. . 



B. compressus n. spec. 



* B. concavus Bronn. . . 



B. cornutus n. spec. . 



B. cymbiformis Darvvin 



B. hystrix n. spec. . . 



B. investitus n. spec. . 



B. longirostrum n. spec 



B. maculatus n. spec. . 



j-B. maldivensis Borradaile 



B. minutus n. spec. . . 

 f B. navicula Darwin . . 

 * B. patellaris Spengler. 



B. pentacrinï n. spec. . 



B. proripiens n. spec. 



B. quadrivittatus Darwin 



B. quinquevittatus n. spec 

 B. socialis Hoek 



' B. stultus Darvvin 

 B. tennis Hoek. . 



jB. terebratus Darwin . 

 B. tintinnabulum Linn. 



'■' B. trieconus Darwin . . 



Sumbawa, Bay of Bima: Stat. 47. 



Halfway between Misool and New Guinea: Stat. 164. 



Also India: Tubicoreen, near Madras. 

 Akyab, Burmah. 

 MoloStreet, Westcoastof Flores; Southof Rotti: Stat. 299; 



Between Adonara and Solor: Stat. 305. 

 Between Wowoni and Buton: Stat. 204; South of Timor: 



Stat. 2S9. 

 Philippine Archipelago, Australia. 



Halfway between Misool and New Guinea: Stat. 164. 

 Near Madras. 

 Ambon-anchorage. 



East of Sumbawa: Stat. 310; (? Kei Islands: Stat. 260). 

 Anchorage off Dongola, Palos-bay: Celebes. 

 East of Sumbawa: Stat. 49a; Ibidem: Stat. 310. 

 East of Sumbawa: Stat. 49a and 310; Molo Street, West- 



coast of Flores; South of Samau Isl.: Stat. 59; between 



Rotti and Timor: Stat. 302. Also: Maldive Archipelago. 

 North of Kwandang, Celebes: Stat. 117. 

 South of Halmaheira: Stat. 144. Also: Tubicoreen, Madras. 

 Philippine Archipelago; also: Bengal. 

 West of Kei Islands: Stat. 251 and 253. 

 Between Wowoni and Buton: Stat. 204. 

 East Indian Archipelago; Stat. 164. Also: Philippine 



Archipelago. 

 Halfway between Misool and New Guinea: Stat. 164. 

 Labuan Badjo; between Misool and Salawatti and New 



Guinea: Stat. 162 and 164; ? between Muna and Buton; 



Saleyer Islands. Also: Arafura Sea. 

 Singapore, attached to Milleporae. 



North of Sulu Islands: Stat. 105. Also: Philippine Ar- 

 chipelago. 

 Kei Islands: Stat. 257. 

 Keel of H. M. "Siboga". Common on ships-bottoms 



coming from West-Africa, India, China etc. 

 Java, East Indian Archipelago. Also: Australia. 



13—31 m- 

 32 m. 



34—113 m. 



75—94—112 m. 



Shallow water. 

 32 m. 



40 m. or less. 

 73—90 m. 



36 m. 

 70—73 m. 



54—390 ni - 



80 in. 



45 m. 

 Shallow water. 



204 — 304 m. 



75—94 m. 



32 m. 



32 m. 

 9—36 m. 



Shallow water. 

 275 m. 



52 m. 

 Surface. 



Shallow water. 



As was the case with species of Scalpelhim, although mostly at other Stations, several 

 places seem to be particularly attractive for species of the genus Balanus. Species of this genus 

 were found at about 40 out of the 323 places or Stations, explored during the cruise of the Siboga. 

 It happened 110 less than 8 times, however, that more than one species of Balanus was 

 collected at the same place or with the same haul of the dredoe. These cases were the followingf: 



At Station 49 a : B. maldivensis and B . maculatus n. sp. 



At Station 50 : B. amaryllis and B . amphitrite. 



In Molo Strait (about Station 51) B. ciliatus n. sp. and B. maldivensis. 



At Station 162: B. amphitrite and B. socialis. 



At Station 164: B. amphitrite, B. calceolus, B. cornutus n. sp., B. quadrivittatus, 

 B. quinquevittatus n. sp. and B. socialis. 



24 



