PACIFIC SCIENCE 
A QUARTERLY DEVOTED TO THE BIOLOGICAL 
AND PHYSICAL SCIENCES OF THE PACIFIC REGION 
VOL. XV APRIL 1961 NO. 2 
Previous issue published February 23, 1961 
CONTENTS 
PAGE 
Studies in Spawning Behavior, Egg Masses, and Larval Development in the 
Gastropod Genus Conus, Fart I. Observations on Nine Species in Hawaii. 
Alan J. Kohn - 163 
Revision of the Genus Pandanus Stickman, Fart 2. Pandanus in Western 
Australia and Notes on the Section Foullioya. Harold St. John 180 
Fungi from Raroia in the Tuamotu Archipelago. William Bridge Cooke 186 
Notes on Indo-Pacific Scleractinian Corals, Fart 3. A New Reef Coral from 
New Caledonia. John W. Wells ... 189 
Porifera of Friday Harbor and Vicinity. M. W. de Laubenfels 192 
Studies of the Biology of Polychoerus carmelensis ( Turbellaria : Acoela) . 
Kenneth B. Armitage . 203 
Preliminary Tests of the Toxin Extracted from California Sea Hares of the 
Genus Aplysia. Lindsay R. Winkler. 211 
A Contribution to the Biology of the Convict Surgeonfish of the Hawaiian 
Islands, Acanthurus triostegus sandvicensis. John E. Randall 213 
A New Species of Micronereis (Annelida, Folychaeta ) from the Marshall 
Islands. Donald J. Reish 273 
Life Cycle of Mesostephanus appendiculatus (Ciurea, 1916) Lutz, 1933 
(Trematoda: Cyathocotylidae) . W. E. Martin 278 
Some Notes on the Hawaiian Monk Seal. Judith E. King and R. J. Harrison.... 282 
Hermaphroditic Skipjack. Richard N . U chida. 294 
Studies on Pacific Ferns, Part IV. The Pteridophyte Flora of Pitcairn Island. 
G. Brownlie... 297 
The Principal Weedy Melastomaceae in Hawaii. D. L. Plucknett and 
B. C. Stone 301 
Leaf and Air Temperature under Hawaii Conditions. T. L. N off singer 304 
note: 
The Species Commonality Index: A Method for Comparing Habitats. 
Charles J. Flora 307 
Pacific Science is published quarterly by the University of Hawaii Press, in January, 
April, July, and October. Subscription price is $4.00 a year; single copy, $1.25. Check 
or money order payable to University of Hawaii should be sent to University of Hawaii 
Press, Honolulu 14, Hawaii, U. S. A. Printed by Star-Bulletin Printing Company, Inc., 
420 Ward Avenue, Honolulu 14, Hawaii. 
&MI I 
r AN&TnrimnKi MAY 1 1 I ; . 
