SCHIZOPODA, STOMATOPODA, AND NON-ANTARCTIC ISOPODA. 885 



to the apex of the telson ; epimera visible in dorsal view ; uropods subequal in length, 

 slightly shorter than the telson, inner ramus bluntly rounded, outer ramus acute, the 

 extremity of both branches minutely and irregularly denticulate when seen under the 

 low power (f") of the microscope (Plate, fig. 6). 



I believe this species to be the one recorded by Kkauss (1843) as Sphmroma 

 tristense, Leach. Krauss' description may be quoted in full : " Die 2 langlich 

 Hockerchen auf dem letzten segmente, so wie die stumpfe Spitze des Abdomen bestimmen 

 mich, meine Examplare fiir diese von Leach nur sehr kurz beschriebene Art zu halten, 

 jedenfalls gehoren sie zu der Abtheilung der Spezies, deren 2 letzte Ringe des Thorax 

 wie die vorderen gebildet sind ; aber alle Ringe haben in der Mitte 4 sehr undeutliche 

 Hockerchen und an den Seiten eine ahnliche Anschwellung. Die Lamellen der hinteren 

 falschen Ftisse haben glatte Riinder und sind gerade so lang als die Spitz des Abdomen. 

 In der Tafelbai. Lange 5 "2 linien." 



The adjective " stumpfe," it is true, does not accurately describe the apex of the 

 pleon in the present form, but the character which I rely on mainly for the identification 

 of this species with the one observed by Krauss is : "all the segments have in the middle 

 four very obscure tubercles." This does not apply to S. tristense of Leach, which has 

 the thorax smooth ; but it accords very well with the present species, though the 

 tubercles are almost obsolete on the anterior seo-ments. The " similar intumescence" on 

 the sides of the segments, mentioned by Krauss, is present on the segments of 

 E. Kraussii, as a slight swelling in the region of the junction of the body segments 

 with their epimeral plates. If E. Kraussii is not identical with S. tristense, Krauss, 

 I am unable to identify it with any described form. 



In the British Museum I found several specimens of this species, unnamed, from 

 Cape Town. Among them were two or three males, which agree in all respects with the 

 females, and have no processes on the thoracic segments. In the characters of the mouth 

 parts and pleopods, the species is in agreement with the genus Exospliseroma. I have 

 named the species in honour of the only worker on South African Crustacea (previous 

 to the recent researches of Stebbing), who most probably had the species before him in 

 compiling his catalogue. 



The species is, so far, only known from Cape Colony in the neighbourhood of 

 Cape Town and neighbouring bays. 



Exosphseroma Coatsii, sp. nov. (Plate, figs. 3 and 4.) 

 Scotia. 



Station 118, lat. 51° 41' S., 57° 51' W., Port Stanley, Falkland Islands, 

 January 1903. — Six females, 4-10 mm. 



Specific Characters. — Body capable of rolling up, or at least doubling up ; epimeral 

 plates not visible in dorsal view, projecting down at right angles to the rest of the 

 segments of the body, from which they are sharply marked off by a strong ridge which 



