NO. 3 



BARNARD: THE PHOXOCEPHALIDAE 



199 



Variation in criteria of Paraphoxus variatus, n. sp. 

 X=positive, 0=negative, XO and OX are intermediates. 



TABLE 3 



Gnathopods 1-2: article 5 longer than 6, the latter narrow, palm 

 transverse. Ratio of lengths of articles 5-6: Gnathopod 1 = 28:21, 

 Gnathopod 2 = 27 :20. 



Peraeopod 3 : articles 4 and 5 of similar width, nearly as wide as 

 article 2, article 6 slender but shorter than 5. Ratio of widths of articles 

 2,4,5,6 = 25:22:22:7. 



Peraeopod 4: article 4 as wide as article 4 of peraeopod 3, article 5 

 more slender. Ratio of widths of articles 2, 4, 5, 6 = 35:22:14:6. 



Peraeopod 5 quite variable; expansion of article 2 as broad as long; 

 its lower edge reaches nearly to the end of article 4, is truncated and 

 dips anteriorly ; sweep point at end of article 3 ; the teeth on the posterior 

 edge usually are quite large and number 3 or 4; occasionally a small 

 dorsal fifth tooth is present; in some specimens (see Table 3) the teeth 

 are medium in size, these usually being specimens having four teeth. 



Uropod 1 : upper edge of peduncle with 1-4 spines, in some specimens 

 these are stout, in others some of the proximal ones are slender; rami 

 each bearing a small apical submerged spine and marginal spines on 

 each ramus are one in number or absent. 



