PISCES: ANTARCTIC FISHES 13 



Eighteen specimens were preserved, of which the largest measures 239 mm. in 

 length ; they were localised as follows : 



Nos. 1-3. The Bay, Cape Eoyds, taken in trap 18 fathoms, May 20, 1908. 



No. 4. The Bay, Cape Royds, collected by Mawson, May 11, 1908. 



Nos. 5-7. Cape Royds, 30-80 fathoms, August 1908. 



Nos. 8-13. Bay, 10-20 fathoms, June 1908. 



No. 14. The Bay, Cape Royds, dredge '10-20- fathoms, May 12, 1908. 



Nos. 15-18. Sound, 10 fathoms, July 7, 1908. 



I found small examples of Trematomus newnesi in the digestive tracts of some 

 of the specimens, and the gills of most of the fishes submitted harboured many 

 crustaceans ; these have been submitted to Dr. Charles Chilton, who furnished the 

 accompanying report. A Copepod (Calanus, sp.) was found to be parasitic on 

 this fish. 



Trematomus hansoni, Boulenger 



Report Southern Cross Collections, 1902, p. 180, Plate XIII. 



The narrow scaly interorbital space and the strongly barred fins are characteristic 

 of this species, the markings in the specimens preserved being much more pronounced 

 and better defined than portrayed by Boulenger : this feature was recognised as 

 distinctive by Mr. Murray, who wrote : " Big-heads with black fins and markings." 

 One example has the edge of the preopercle white, continued as a band across the 

 occiput. 



Though the ground colour in preservative is brownish, Mr. Murray renders the 

 tint in fresh specimens as " dark greenish," " light grey," &c. 



Of six examples submitted the largest measures 249 mm. in length. 



The following are the localities of the specimens : 



Nos. 1-2. In fish-trap, Cape Royds, 25 fathoms, September 1, 1908. 

 No. 3 (cut in two). Found on ice beside seal-hole in the Bay, Cape Royds, 

 May 1908. 



Nos. 4-6. In fish-trap, Cape Royds, 25 fathoms, August 25, 1908. 



Dr. Charles Chilton has examined the crustaceans found in the gill cavities oi 

 these fishes, and his report is printed herewith. 



Trematomus newnesi, Boulenger 

 Report Southern Cross Collections, 1902, p. 177, Plate XI. 



With two exceptions all the examples referred to this species are small. The 

 largest measures 137 mm. in length ; most of the others are much smaller. 



The relatively wide space between the eyes is a character common also to 

 T. borchyrevinki, Boul., but T. neivnesi is distinguishable from that species by the 

 strongly marked and tubular lateral lines. 



The specimens placed in my hands agree generally with the description of this 



