230 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 18 



Distribution. — South Carolina to Florida. Eastern tropical Pacific 

 from Panama to the California-Mexico borderline, 2 to 24 fms. The 

 species does not occur on the coastal shelf of southern California, north 

 of the Mexican border. 



Paraphoxus similis, new species 



(Plates 22, 23) 



Diagnosis of female. — Head rather broad and short, rostrum tapering 

 evenly anteriorly to a blunt apex, eyes medium in size, oval. Body 

 moderately slender. 



Epistome grossly produced in a massive, finger-like projection. 



Maxillipedal palp article 4 with an apical spine. 



Gnathopod 1 : article 5 much shorter than 6, the latter rather slender 

 and with an oblique palm; article 6 of gnathopod 2 somewhat stouter 

 than in gnathopod 1. Ratio of lengths of articles 5 and 6: Gnathopod 

 1 — 19:30, Gnathopod 2 — 15:28. 



Peraeopod 3 rather slender, articles 4-6 successively more slender and 

 longer. Ratio of widths of articles 2, 4, 5, 6 = 24:13 :11 :6. 



Peraeopod 4 slender, article 2 with posterior ventral corner produced 

 downward strongly and subconically. Ratio of widths of articles 2, 4, 5, 

 6 = 30:12:8:5. 



Peraeopod 5 : article 2 moderately broad, its ratio of width to length 

 is 42 : 47 ; article 2 extends down nearly to the end of article 4, its sweep 

 point being at the middle of article 4; lower edge scarcely rounded, 

 posterior edge armed with about 7 small teeth ; rest of appendage slender, 

 article 6 longer than 5, article 7 moderately long. 



Uropods 1-2: apices of rami each bear a short, articulated spine; 

 uropod 1 with long spines on peduncle, the distal one stout; both rami 

 with slender spines; uropod 2 with long peduncular spines, outer ramus 

 with 3 long spines, inner with one. 



Uropod 3: inner ramus one third as long as outer ramus; article 2 

 of outer ramus slender, about one third as long as article 1. 



PLATE 22 

 Paraphoxus similis n. sp. v female, 3.5 mm, Sta. 2448-53. 



Figs. A,B, head; C,D, antenna 1, 2; E, epistome; F, mandible; G,H, 

 maxillae 1, 2; I, maxillipedal palp article 4; J,K,L, gnathopods 2, 1, 

 2 ; M, coxa 3 ; N.O.P.Q, peraeopods 2, 3, 4, 5 ; R,S,T, uropods 1, 2, 3 ; 

 U, telson; V, pleon segments 2-3. 

 Male, 3.5 mm, Sta. 2448-53. Figs. W, head; T', uropod 3; Y, antenna 2. 

 Male, young, 3.3 mm, Sta. 2292-53. Figs. X, head; Z, uropod J. 



