K'o. 1670. POVR NEW 8PECIE8 OF I80P0DS— HOLMES AND GAY. 377 



/>rp^ 



Thoracic segments siibeqiial, the epimera in all produced back- 

 ward and rounded at the posterior antjle. Legs very spiny, the 

 terminal part of the claw 

 marked off by an apparent 

 suture from the longer basal 

 portion : first pair of legs with 

 an acute lobe near the distal 

 end of the anterior margin of 

 the second joint ; fourth joint 

 produced and rounded in front. 



Third abdominal segment 

 and to a less extent the fourth 

 produced backward at the outer 

 posterior angle ; lateral process 

 of fifth segment small. Last 

 segment truncated and four or 

 five times as broad as long. 

 Uropods nearly semicircular 

 in outline, armed with a few 

 scattered spines, the small ter- 

 minal joint furnished with a 

 few spines and several setae. 



Length, 10 mm. 



Locality. — San Diego, Cali- 

 fornia, in sand near the beach. 



Xyne. Cat. Xo. 39047 ^'*^- "*• — Tylos punctatcs ,- a, AXTEXXA ; mx-i,, 



-T-r (<-irr ~Kr ' FIRST MAXILLA; mxp, MAXILLIPED ; plPl, 



U.O.jN.JM. second pleopod of the male; plpi, fourth 



Xo other representative of pleopod ; m-, cropod. 

 the family Tylidae is known from the west coast of Xorth America. 



ACTONISCUS TUBERCULATUS, new species. 



Body elliptical in outline and furnished with small tubercles. 

 Head deeply inserted, with an acute median lobe and prominent 

 rounded lateral ones. Eyes oval. Antennae not one-third the length 

 of the body, the second joint of the peduncle a little longer than the 

 third and about twice the length of the first ; fourth joint longer 

 than the third but not quite so long as the fifth : flagellum with four 

 evident joints and a minute terminal fifth joint. The peduncle 

 is bent between the second and third, and the fourth and fifth joints. 



Maxillipeds with a rounded .setose inner lobe ; palp short and 

 broad, the first joint much wider than long, the second triangular 

 with slightly lobulated inner margin, the tip with a brush of long 

 setae. 



Legs similar, spiny, a long ciliated spine on the lower margin of 

 the fifth joint. 



