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PACIFIC SCIENCE, Vol. Ill, January, 1949 
Fig. 1. Calantica ( Paracalantica ) ikedai subgen. et sp. nov.: a, specimen in lateral view, X 3; b, umbonal 
portion of scutum, X 6; c, rostrum in upper view, X 6; d, complemental male in lateral view, X 30; e, the 
same in upper view, X 30. 
rostral latus just below carinal latus; thus basal 
margin occupies less than one-half of basal 
breadth of capitulum. 
Peduncle a little shorter than capitulum, 
tapering downwards and densely covered with 
somewhat large, strongly imbricating, white, 
calcified scales. Scales invested by yellowish 
cuticle except for disintegrated apices, rather 
broad, becoming club-shaped toward base of 
peduncle; row extending downwards longitu- 
dinally from point of junction between ros- 
tral latus and subcarina noticeably larger than 
elsewhere. 
Mouth parts: Labrum concave, without teeth. 
Palpus elongate, with long bristles along some- 
what rounded extremity. 
Mandible with four teeth, second smallest, 
and rounded lower angle slightly pectinated. 
Maxilla I with spines of three different sizes; 
two spines on upper angle are largest, those on 
middle somewhat shorter and slender, shortest 
ones on the strongly protruded lower angle. 
Maxilla II roughly quadrangular, with bristles 
on entire edge. 
Cirri ordinary in segmentation and armature; 
both rami of each cirrus subequal in length, 
segments a little longer than wide and bearing 
five pairs of ventral bristles and one long and 
two short dorsal bristles at the distal angle. Pro- 
topodites robust. The numbers of segments of 
the cirri are as follows: 
I II III IV V VI 
13 15 14 16 17 16 21 20 20 20 20 21 
Caudal appendage uni-articulate, a little 
longer than one-half the length of lower seg- 
ment of protopodite of cirrus VI, terminating 
in a brush of a few short bristles. 
Penis extremely short, about as long as pro- 
topodite of cirrus VI, very feebly annulated, 
provided with fine hairs distally. 
One complemental male is present in the 
usual position in front of the adductor scutorum 
muscle. Although it has the typical appearance 
of the male of the genera Calantica and Smilium, 
