NO. 3656 COPEPODS—LEWIS 21 
processes. Male maxilliped (fig. 8d) similar to that of female except 
shelflike projection of first segment much smaller. 
For nature of thoracic legs and armature, see figures 9a—d and table 4. 
Discussion.—The male specimen from Eniwetok differs slightly 
from the description given by Kabata (1966a) for the male specimen 
from Heron Island. The differences are in some of the armature 
elements on the thoracic legs and include the absence, on the Eniwetok 
specimen, of a small denticulation on the second segment of the endo- 
podite of the first leg and the presence of a coarsely frilled membrane 
instead of 3 spinules on the second segment of the exopodite of the 
first thoracic leg. 
TaBLE 4.—Armature of thoracic legs I-IV of the female and male of Dissonus heronen- 
sis Kabata, 1966 
Inter- Exopodite Endopodite 
Leg Surface podal PTOtOe sip [een ses ees See, CS 
Plate podite 
1 2 3 1 2 3 
I | Outer p h 2fH ,2H fm* ¢,Cl 
Inner fm*,a,p c 3P 3p 
II | Outer m,p m,dm,H fm,H fm,H,p c @ ¢,3P 
m 
Inner Ps (ple cP 5P P c,2P 3P 
III | Outer p fm,H fm,H fm,2H,Q c @ ¢,Cl 
m 
Inner P,m,2s CE ¢,P 5P 12 ¢,2P 4P 
IV | Outer s#,p dm,fimH | fH+ fH+,p’,Q Cc c ¢,Cl 
m 
Inner P,2m ie 12 5P 1p ¢,2P. 3P 
*Frilled membrane extending across part of segment, not only on indicated surface. 
#Numerous processes scattered over surfaces of segment. 
+Frilled membranes very small. 
Dissonus similis Kabata 
Fiaures 10-12 
Dissonus similis Kabata, 1966a, p. 211, figs. 1, 2. 
Host AND DISTRIBUTION.—Spheroides hamiltoni, Queensland, 
Australia. 
Marertau.—3 females and 5 males (USNM 120742) from the gill 
cavity of Arothron meleagris (Block and Schneider) ; 3 females, 2 males 
and 2 chalimus stages (USNM 120743) from the gill cavity of A. 
meleagris; 1 female and 1 male (USNM 120744) from the gill cavity 
of A. meleagris; 2 females and 1 male (USNM 120745) from the gill 
cavity of A. meleagris. 
