REPORT ON THE SCHIZOPODA. 



75 



The following synopsis of the sijecies may he here appended : — 



acutely produced. 

 Eyes 



rather Large, pyriform. C two denticles, 

 Inferior margin of -^ 

 carapace armed with ( a single denticle, 



very small. Third 

 caudal setrment 



smooth, not pro- 

 duced, . 



' produced to an 

 acute pos- 



teriorly curving 

 lappet, . 



smooth. 



Frontal part of < 

 carapace 



very slightly pro- 

 duced. Inferior 

 margin of cara- 

 pace 



armed 

 with a 

 single 

 denticle 

 placed 



anteriorly to the middle, 



in the f smooth, 

 middle. 



Third •{ produced to a pos- 

 caudal teriorly point- 

 segment [ ing spine. 



E. peUucida, Dana. 

 E. similis, G. 0. Sars. 



E. gracilis, Dana. 



E. gibha, G. 0. Sars. 

 E. superha, Dana. 

 E. murrayi, G. O. Sars. 

 E. splendens, Dana. 



produced to a strong rostral projection, and armed with distinct 

 supra-orbital spines. Caudal segments partly spinous, 



• ,. C triangularly pointed, .... 



projecting as a J ° •^ ^ ' 



broad plate 



truncate at the apex. 



E. miicronata, G. 0. Sars. 



E. spinifera, G. 0. Sars. 

 E. antardica, G. 0. Sars. 

 E. latifrons, G. 0. Sars. 



14. Eiipliausia pellucida, Dana (Pis. XL, XII.). 



Eupliausia pdlucida, Dana, United States Expl. Exped., vol. xiii., Crustacea, p. 641, pi. xlii. 



fig. 4, a-m. 

 Euphamiamiilleri, Claus, Zeitschr. f. wiss. Zool., Bd. xiii. p. 432, pi. xxviii. figs. 29-31, pi. xxix. 

 Thysanopoda lidentata, G. 0. Sars, Oversigt af Norges Crustaceer, Bd. i. p. 50, pi. i. 



figs. 11-14. 

 Euphausia pellucida, G. 0. Sars, Preliminary Notices on the Challenger Schizopoda, No. 13. 



Specific Characters.- — Carapace with two lateral denticles on either side, frontal part 

 produced and acutely pointed. Caudal segments smooth, epimera rather large and of 

 uniform appearance. Last segment longer than the preceding ; preanal spine triden- 

 tate. Eyes of moderate size, pyriform. Basal joint of antennula^ with an erect leaflet 

 above, usually divided into two acuminate lappets. Antennal scale oblong-ovate, 

 obtusely truncate at apex, outer corner unarmed ; basal spine very large, and denticulate 

 at inner edge. Terminal joint of second pair- of maxillae short and broad, with a row of 

 small teeth anteriorly. Telson elongate ; subapical spines very large, and finely denti- 

 culate at inner edge. Inner plate of uropoda longer than outer. Usual length of adult 

 female 10 to 15 mm. 



Remarks. — This would seem to be by far the commonest of all the Challenger species 



