222 "TERRA NOVA" EXPEDITION. 



be judged from the figure of tlie animal in side view (pi. VI, fig. 9). The apex of 

 the telson has a semi-circular notch, not very visible in dorsal view but somewhat 

 deep viewed from behind. In one of the specimens, which I suspect to be a male, 

 thouoh it had no stylet on the second pleopods or any appendages on the sternum 

 of the last thoracic somite, the notch in the apex of the telson is completely hidden 

 in dorsal view by a short obtuse blunt process on the dorsal surface of the telson 

 (pi. VI, fig. 10). This is the only difference I could find between the sexes, supposing 

 my presumption that the latter specimen represents the male sex be true. The 

 uropods are sub-equal in length, with truncate apices. The anterior margin of the 

 head is produced between the bases of the first antennae into a short but well-marked 

 rostral process, which meets the anterior end of the epistome. The latter is figured 

 on pi. VI, fig. 11, and is of quite characteristic shape, with a distinct tubercle on the 

 central portion. The first and second antennae (pi. VI, figs. 12, 13) have flagella of 

 eight and twelve joints respectively: The second to eighth thoracic limbs (pi. VI, 

 figs. 14, 15) are all bi-unguiculate, the second pair with three larger spines on the 

 inner margin of the merus, two on the carpus, and three on the propodus, with smaller 

 spinules in between. The thoracic limbs become successively longer, but the general 

 form and the armature remain of the same type throughout. The pleopods are of the 

 usual hemi-branchiate type, with the exopod of the third pair two-jointed. 



Filhol's specimens were taken in Cook Strait and on the shores of Stewart Island. 

 His original description, which I quote in full, is very short and unsatisfactory : " Cette 

 espece, que j'ai recueille dans le detroit de Cook et sur la cote est de I'lle Stewart, 

 se differencie du Cymodocea granulata par le lobe postero-lateral du dernier segment 

 thoracique qui ne se contourne pas en arriere pour se terminer par une courte epine 

 dirigee en haut, par la presence de deux tuberosites sur la portion mediane du dernier 

 anneau abdominal, par la disposition des appendices caudaux qui ont la meme grandeur." 

 The present specimens agree with that description as far as it goes, and, as the specific 

 name indicates, the chief character of the species is the presence of two prominent 

 bosses on the telson. This character alone has led me to regard my specimens as 

 belonging to Filhol's species. 



B. SPHAEROMINAE EUBRANCHIATAE. 



Genus CYMODOCELLA, Pfeffer. 

 29. Cymodocella tubicauda, Pfefi"er. 



C. tuhicauda, Pfefier, 1887, p. 110, pi. II, fig. 8, pi. VI, figs. 11, 12; Richardson, 1908, p. 4; 



Hodgson, 1910, p. 31 ; Chilton, 1909, p. 657 ; Richardson, 1913, p. 6. 

 Sphaeroma {"i) egregia, Chilton, 1892, p. 269. 

 G. egregia, Hansen, 1905 (1), p. 126; Richardson, 1906, p. 6. 

 Cymodocea antarctica, Hodgson, 1902, p. 243, pi. XXXII, fig. 2. 



Occurrence. — Station 220, off" Cape Adare, 45-50 fathoms, bottom fauna, three 

 specimens, 7-8 mm. 



