xxi NYMPHONIDAE - PALLENIDAE 537 



Miers ( = JV". horridum, Bohm), an extraordinary hispid form 

 from Kerguelen, 1 is also peculiar. Pentanymphon, Hodgson 

 (1904), from the Antarctic (circumpolar), differs in no respect 

 save in the presence of a fifth pair of legs ; one species. 



The only other genus is Paranymphon, Caullery (1896) 

 (one species, Gulf of Gascony, West of Ireland, Greenland), in 

 which the palp is (6-) 7 -jointed, the ovigerous leg 8-jointed, and 

 the auxiliary claws are absent. 



Fam. 7. Pallenidae. As in Nymphon, but appendage II. 

 absent or rudimentary. 



Pallene, Johnston (1837): about ten species (Mediterranean, 

 North Atlantic, Arctic, Australia). P. languida, Hoek, Australia, 

 lacks auxiliary claws, and is otherwise distinct ; 

 but P. novaezealandiae, G. M. Thomson, is typical. 

 Pseudopallene, Wilson (1878): 2 appendage III. 

 clawed ; auxiliary claws absent ; four (or more) 

 species (North Atlantic, Arctic, Antarctic). P. 

 ^Phoxichilus} pygmaea, Costa (1836), and P. 

 spinosa, Quatref., seem to belong to this genus or 

 to Pallene. Cordylochele,Gr.Q.Sa,rs(l888}: closely 

 allied, but with front of cephalic segment much 

 expanded and chelae remarkably swollen, includes T 



J . FIG. 285. Pallene 



three very smooth, elongated, northern species, to 



which Bouvier has added one from the Antarctic : stoll v, ?> ' ly " 



month. 



Pallene laevis, Hoek, from Bass's Straits, is 

 somewhat similar. Neopallene, Dohrn (1881): as in Pallene, 

 but with a rudimentary second appendage in the female, and no 

 generative aperture on the last leg in the male (one species, 

 Mediterranean). Parapallene, Carpenter (1892) : as in Pallene, 

 but without auxiliary claws, and with the two last segments of 

 the trunk (which in Pallene are coalesced) independent (about 



1 Found by Sir John Ross's expedition in 1840, and subsequently by the 

 Challenger expedition and other visitors. 



2 Stebbing has recently shown (Knowledge, Aug. 1902, p. 157) that the genus 

 Phoxichilus was instituted by Latreille (Nouv. Diet, d'hist. nat. 1804) for the 

 Pycnogonum spinipes of Fabricius, now Pseudopallene spinipcs, auctt. Hence he 

 changes Pseudopallene to Phoxichilus. Latr., and Phoxichilidae and Phoxichilus, 

 auctt., to Chilophoxidae, etc. ; it also follows that the family known to all 

 naturalists as Pallenidae should, according to the letter of the law of priority, 

 be henceforth known as the Phoxichilidae. In my opinion this is a case where 

 strict adherence to priority would serve no good end, but would only lead to great 

 and lasting confusion (cf. Norman, J. Linn. Soc. xxx., 1908, p. 231). 



