NO. 3 BARNARD : THE PHOXOCEPHALIDAE 271 



Paraphoxus cornutus (Schellenberg), new combination 



Metharpinia cornuta Schellenberg 1931 : 68-69, fig. 35. 



Remarks. — One specimen of Schellenberg's original series was exam- 

 ined but not dissected. The epistome is rather large and bulbous like that 

 of P. longirostris Schellenberg and P. oculatus (Sars). The fourth palp 

 article of the maxilliped has a well developed apical spine, unlike 

 P. longirostris. 



The species is rather similar to P. stenodes n. sp. from the Northern 

 Hemisphere, especially in its rostrum and uropods 1 and 2, but differs 

 from all other known paraphoxids in the large erect terminal cusp on 

 pleon segment 6. Peraeopod 3 is unlike that in P. longirostris in that 

 articles 4 and 5 are of equal width. 



Material examined. — One female, 6 mm, Swedish Museum Cat. No. 

 2699, 4.XII. 1895, Punta Arenas, Sandboden mit Algen, 7-8 Fd. 



Distribution. — South America, southern tip at Punta Arenas and 

 Ushuaia, Ebbestrand to 8 Fd. 



Paraphoxus fuegiensis (Schellenberg) 



(Plate 42) 



Parharpinia fuegiensis Schellenberg 1931: 78-80, fig. 40; Stephensen 



1949: 5-6. 



Remarks. — I have reexamined many of Schellenberg's original speci- 

 mens of this species and provide some fresh figures of a number of the 

 morphological features, drawn mainly from one of the four syntypes. 



This species finds its close relationship to such categories as 

 P. oculatus, P. spinosus, P. simplex and P. rotundifrons. The relation- 

 ships are explained in the key to the species of the genus. Because of 

 its brief description P. rotundifrons appears nearly indistinct from 

 P. fuegiensis but they may be segregated provisionally by the subtle 

 differences in the shape of the third epimera. 



Aberrant specimen. — A single female, 9 mm, from Swedish Museum 

 Cat. No. 3631 is quite aberrant and may be a hybrid offspring with 

 P. sinuatus (=P. "villosa," Schellenberg). The specimen is blind and 

 its first antenna is very stout and modified to resemble the antennae of 

 some Lysianassidae. (Plate 42, figs. S, T, U). The head shape, 

 gnathopods, and peraeopod 5 are like those in P. sinuatus while the 

 maxillipedal palp, uropods 1-2, and the third pleonal epimera are quite 

 normal. 



