NO. 3656 COPEPODS—LEWIS 25 
twice the length of outermost, both with fine membranes, membranes 
extending to tip of mnermost terminal process, forming complex 
series of denticulation (fig. 11e). 
Female and male maxilliped (fig. 11f) 2-segmented, situated im- 
mediately posterior and medial to maxilla base. First segment strongly 
developed, with long, recurved articulation and muscle attachment 
surface embedded in cephalothorax; inner surface with large, shelflike 
projection, projection (fig. 11g) bearing 2-parted nodule, distal part 
spherical, with approximately 3 ridges forming roughened surface. 
Second segment distinct from clawlike terminal process, bearing 
single, minute, setule-like accessory process; terminal process with 
fine, longitudinal ridges distally. 
-—+——__+__+—_+—_H1 
005mm.¢s 
O1mm.?o 
Ficure 11.—Dissonus similis Kabata, 1966, ventral views: a, left antennule; b, female oral 
region showing antenna, postantennal process, mouth cone, mandible, maxillule, postoral 
process, and maxilla base; c, male right antenna and postantennal process; d, right maxilla; 
e, distal region of innermost terminal process of maxilla; f, left maxilliped; g, shelflike 
indentation on first segment of maxilliped. 
