SCHIZOPODA, STOMATOPODA, AND NON-ANTARCTIC ISOPODA. 181 



Station 14, lat. 21 28' N., long. 22 40' \V., tow-net. Ten. 

 Station 15, lat. 20 34' N., long. 23 12' W., tow-net. Two. 

 Station 18, lat. 19 59' N., long. 23 34' W., tow-net. One. 

 Station 21, lat. 18 28' N., long. 24 28' W., tow-net. Seven. 

 Station 32, lat. 10 46' N., long. 25 21' W., tow-net. One. 

 Station 33, lat. 9 40' N., long. 25 28' W., tow-net. One. 

 Station 36, lat. 8 42' N., long. 25 28' W., tow-net. Twenty-five. 

 Station 37, lat. 7 50' N., long. 25 31' W., tow-net. Three. 

 Station 39, lat. 6 43' N., long. 25 48' W., tow-net, Two. 

 Station 46, Int. 3 13' N., long. 26 30' W., tow-net. Five. 

 Station 56, lat, 42' S., long. 31 20' W., tow-net. Thirty-eight. 

 Station 58, lat. 2 13' S., long. 32 23' W., tow-net. Forty-eight. 

 Station 59, lat. 2 30' S., long. 32 42' W., tow-net. Eight. 

 Station 61, lat. 3 38' S., long. 33 20' W., tow-net. One. 

 Station 62, lat. 4 15' S., long. 33 38' W., tow-net Eighteen. 

 Station 515, lat. 2 32' N., long. 19 32' W., tow-net Nine. 



Discovery. 



Funchal Bay, Madeira. Four. 



Lat 13 59' S., long. 34 35' W. Two. 



Lat. 17 15' S., long. 32 05' W. Three. 



Lat. 30 43' S., long. 21 36' W. One. 



Lat. 33 53' S., long. 17 38' W. Two. 



All the stations listed above are in the Atlantic Ocean, and all the specimens were 

 captured at the surface. These records indicate that S. Thompsonii is an abundant 

 species in the tropical Atlantic ; and a correspondingly Jong list of captures given by 

 HANSEN (1 912) shows that it is likewise equally common in the Eastern Pacific. Its dis- 

 tribution is, in short, circumtropical, bounded, roughly speaking, by the lines of latitude 

 40 N. and 40 S. Several specimens in the Scotia collections were found to have the 

 Epicarid, Dajus sirtellie, G. 0. Sars, in their marsupial pouches. This parasite, first 

 found by SARS in the same host, collected by the Challenger, has only been recorded 

 once since its discovery, namely, by HANSEN (1912), who also found it in the present host. 



Siriella denticulata, G. M. Thomson. 



N. denticulata, Thomson, 1900. 

 Discovery. 



Laurie Harbour, Auckland Isles. One female, 6 mm., immature. 



I refer this small and immature specimen to S. denticulata, Thomson, with some 

 little doubt, and add a few notes supplementing THOMSON'S description. The rostrum, 

 in my specimen, can hardly be described as spiniform. The two lateral margins meet 

 in almost a right angle with the apex hardly produced. There is, however, a promi- 



(ROY. soc. KDIN. TKANS., VOL. XLIX., 871.) 



