658 ViNNIE ReAM StOüT, 



Gnathopod 2 of the male larger tlian 1 : second Joint long, both the 

 second and third with apical projections in front; 3, 4, and 5 eacli 

 witli plnmose setae behind; sixth not niore tlian twice as long as 

 bi'oad: palm long with transverse projection near hinge, the rest of 

 the palm very oblique and not well defined, numerous plnmose setae 

 all along the bind margin of the band; finger long, curved, sinuous, 

 especiall}^ on the inner margin. Gnathopod 2 of the female similar 

 to 1 but even more simple. Both gnathopods of the female smalL 

 Pereiopod 1, second Joint produced, the other joints short and thick. 

 Pereiopod 2 similar to 1, but slightly longer. Pereiopods 3—5 succes- 

 sively longer. Pleopods all developed, with two rami. Uropod 3, 

 peduncle long, rami short, less tlian half as long as the pedunele; 

 outer ramus with toothed claws; inner ramus simpler and more 

 slender. 



Color, white; the females carrying green eggs. 



L. 2.5-3 mm. 



Occasional in Phyllospadix. Laguna Beach, Calif. 



EricJithonius disjmictus n. S2)» 



Body slender. Head with side-lobes acute, produced fai' forward 

 between the antennae. Antenna 2 arising very far back below the 

 eye. Side-plates 1 and 2 in the male arising from the front end of 

 their segments, and neither touching tlie one behind it; side-plate 3 

 produced somewhat forward: side-plate 5 bilobed, the front lobe a 

 trifle deeper than the fourth; side-plates of the females Ijing closer 

 together, all shallow. Pleon strongly flexed. Antenna 1 usually 

 broken off at the end of the stout first Joint of the peduncle, the 

 second Joint longer than the third, the third than the first; peduncle 

 elongate, longer than the 13-jointed flagellum. Antenna 2 subequal 

 in length to antenna 1; peduncle longer than the 10 — 13-jointed 

 flagellum, ultimate and penultimate joints subequal. Mandible with 

 molar large, spines in spine-row numerous, cutting plates very small 

 and dentate, 3-jointed, setose palp with the second Joint longest and 

 the third Joint widened distall}^ Maxilla 1, inner plate small, edged 

 with about five setae; outer plate with ten spines; palp longer 

 than the outer plate, two-jointed, tipped with spines and setae. 

 Maxilla 2, outer plate apically, and inner plate edged both apically 

 and on inner margin with spines. Maxillipeds normal. 



Gnathopod 1 of the female very small, abundantly setose; fifth 



