NO. 3 BARNARD : THE PHOXOCEPHALIDAE 291 



SOUTHWESTERN PACIFIC (Australia, New Zealand) 



P. australis 



P. barnardi 



P. capillatus 



P. pinguis 



P. pyripes ANTARCTIC 



P. rostratus PFalklands 



P. stebbingi 



P. tattersalli 



P. villosus 



TABLE 13 



Genus Microphoxus, new genus 



Diagnosis. — Maxillipedal palp article 4 bears two apical setae; eyes 

 present; article 2 of peraeopod 3 broad; rami of uropods 1 and 2 with 

 apical spines; head with very short, narrow rostrum; maxilla 1 with 

 Particulate palp; mandible with simple molar. 



Type species. — Microphoxus minimus, n. sp. 



Remarks. — This genus is related to Paraphoxus more than to any 

 other phoxocephalid genus, but differs in the apical setae on the fourth 

 maxillipedal palp article. The very small rostrum and apical spines 

 on the rami of uropod 2 also are characteristic. 



Microphoxus minimus, new species 



(Plate 46) 



Descriptive features. — Eyes very small, each composed of 3-5 lenses; 

 epistome not produced; peraeopod 5 with posterior lobe of article 2 

 produced down to the middle of article 5, posterior edge bearing 3 

 medium sized teeth; third pleonal epimeron with posterior edge nearly 

 straight, lower corner rounded and bearing a short submarginal oblique 

 row of setae. 



Holotype.— USNM Cat. No. 97308, female, 2.25 mm. 



Type locality. — Station 460-35, Playa Blanca, Costa Rica, 10-56-00 

 N, 85-52-50 W, 3-5 fms, sand, shell, Feb. 8, 1935. 



Remarks. — A fragment of a male specimen also was collected at 

 the type locality. The eyes are quite large and quadrangular, the 

 second antenna about three fourths as long as the body. The urosome 

 is missing. 



