458 PROCEEDINGS OF THE NATIONAL MUSEUM VoL. 113 
to be no room for doubting that the two specimens represent a new 
type of the Ascothoracida. Gorgonolaureus bikiniensis, new genus 
and species, is the name which I propose herein for this remarkable 
endoparasitic crustacean. 
Family Lauridae 
Gorgonolaureus, new genus 
Diaqnosts: Aberrant endoparasitic Ascothoracida with  saclike 
mantle somewhat compressed, leaving a large slitlike mantle opening 
ees oa onan 
Figures 1-3.—Gorgonolaureus bikiniensis: 1, Paratype wholly buried in the bark of a 
Holaxonian gorgonid Paracts squamata (Nutting) (mo, mantle opening; ms, mantle sac); 
2, outer side of mantle sac of the holotype; 3, marginal part of outer surface of mantle 
sac, highly magnified. 
posteriorly above. Hermaphrodite. Body proper within mantle 
sac, apparently not well segmented, with six pairs of two-seg- 
mented thoracic appendages bearing long setae. Abdomen short- 
ened, apparently unsegmented, with a pair of caudal furea. A pair of 
filamentary appendages or “horns” present on dorsal side of prosoma. 
Development in mantle cavity of hermaphrodite up to metanauplii. 
Male unknown. Endoparasitic in Gorgonacean cortex. 
Type species: Gorgonolaureus bikiniensis, new species. 
