28 
Peraeopods 1 and 2 equal in size. Peraeo- 
pods 3 to 5 successively slightly longer, sec- 
ond articles broadly expanded. 
Uropods with outer rami shorter than inner, 
inner rami not longer than peduncles; uropod 
1 longest, uropod 2 shortest. Telson similar 
to Leucothoides pottsi Shoemaker (1933). 
Pleon segment 3 with posteroventral corner 
of epimera rounded. 
female: Process of article 5 on gnathopod 
2 relatively shorter than in male, palm very 
oblique, serrated, article 7 not stout. 
holotype: AHF No. 516, male 4 mm. in 
length. 
TYPE LOCALITY: Ellis Boat Landing, New- 
port Harbor, California (on the south side of 
United States Highway 101A bridge crossing 
the channel leading to upper Newport Bay), 
July 27, 1951, collected by Dr. John L. Mohr, 
13 specimens examined. 
MATERIAL examined: Ellis Boat Landing, 
November 29, 1953, formalin washings of 
sponges, coll. R. H. Linsley, 20 specimens; 
dock of Fun Zone Boat Co., Palm Avenue 
at Bay Front Street, Newport Beach (on bay 
side), November 29, 1953, formalin wash- 
ings of sponges, coll. R. H. Linsley, 26 
specimens. 
remarks: This species differs from Leuco- 
thoides pottsi Shoemaket (1933) from Tortugas, 
Florida, by: (1) the convex palm of the male 
second gnathopod; (2) the stout seventh ar- 
ticle of the male second gnathopod; (3) the 
rounded lower anterior corner of the head; 
(4) the long peduncle of uropod 1. 
The figure of the male second gnathopod 
shows one of the sponge spicules drawn to the 
same scale and superimposed on the coxal 
plate. This particular spicule was removed 
along with others from the "brood pouch" 
region of the male. This type of calcareous 
spicule indicates that some of the specimens 
obtained by formalin washings were from the 
smaller calcareous sponges present in some 
samples. 
PACIFIC SCIENCE, Vol. IX, January, 1955 
Family ANAMIXIDAE 
Anamixis linsleyi, new species 
Fig. 2a— d y f-m , o—w 
DESCRIPTION OF MALE: Head fused with 
first peraeon segment so that each is not 
freely movable, but lines of articulation not 
obscured; rostrum blunt; eyes large, com- 
posed of few facets; lateral lobes not pro- 
duced; front of head between antennae bears 
a low but sharp carina. 
Antenna 1 longer and stouter than 2, as 
long as head and first 3 peraeon segments; 
accessory flagellum minute, barrel-shaped, 
armed with 2 setae; articles of peduncle suc- 
cessively shorter, primary flagellum not as 
long as peduncle, composed of 9 to 11 
articles. 
Antenna 2 with article 5 shorter than 4, 
flagellum shorter than article 5 of peduncle, 
composed of 4 to 5 articles. 
Mouth parts degenerated: on the underside 
of the head is a single, thin, pointed lamella, 
possibly representing the fused mandibles. 
Maxillae 1 and 2 obsolete. 
Maxilliped with inner plates fused and 
short, in some larger specimens (5 mm.) com- 
pletely obsolete; outer plates obsolete; article 
5 of palp slender, curved, armed on inner 
edge with short hairs. 
Gnathopod 1 complexly chelate, small, the 
coxal plate produced forward conically and 
partially concealed by the large second coxa; 
inner edge of article 6 serrulate, article 7 
small, spinuliform; chela of article 5 retruse 
and blunt at apex. 
Gnathopod 2 complexly chelate, article 5 
produced forward into a conical appendage 
nearly as long as article 6; palm not distinct 
from hind margin, armed with several cusps, 
the distal one the longest; article 7 closing on 
process of article 5, inner edge with 3 cusps, 
the distal one armed with 2 spinules. 
Peraeopods as figured. 
Uropods 1 and 2 with inner rami longer 
than outer, both armed on upper edges with 
spinules. Uropod 3, rami subequal in size. 
