16 Carl Bovallius, 



3. Syiiopia Schéeleana. N. sp. 



(PI. ir, %. 22—29.) 



Deriv. The name in honor of Captain George von Scheele, tlie zealous colieclor of 

 pelagic animals for the University of Upsala. 



Diagn. Caput trianguläre, longitudine latitudinem œquans. 



OcuU parvi supplementarii, singuli, supra bases antennarum primi paris siti. 



Antennœ primi paris quam pereion lougiores; flagellum secundarium longi- 

 tudine articulum primum flagelli (veri) hand sequans. 



Segmentum primum pereii secundmn longitudine sequans; sextum septimo bre- 

 vius, septimum omnium longissimum. 



Femora paris quinti pedum pereii ovata, femora paris sexti eircularia. 



Pedunculi pedum plei cylindrici. 



Segmentum primum i(ri secundo ter longius. 



Rami ultimi paris ijednm uri inœquales, margine toto iuterno setis instructo. 



Telson latum, ovatimi, in apice rotundatum. 



The head is triangular, as broad as long. 



A small secondary eye on each side of the head, at the base of 

 the first pair of antennas. 



The first pair of antennœ are longer than the pereion ; the secon- 

 dary flagellum shorter than the first joint of the true flagellum. 



The first pereional segment is as long as the second; the sixth 

 is shorter than the seventh, which is the longest. 



The femora of the fifth pair of pereiopoda are ovate, those of 

 the sixth pair circular. 



The peduncles of the pleopoda are cylindrical. 



The first ural segment is three times longer than the second. 



The rami of the last pair of uropoda are unequal in lengthy fringed 

 with hairs along the whole length of the inner margins. 



The telson is broad, ovate, rounded at the ends. 



Synopia Schéeleana is intermediate between S. ultramarina and 

 S. gracilis^ but is perhaps more allied to the last. It diflPers from it 

 in the following characteristics: the supplementary eyes, the short se- 

 condary flagellum of the first pair of antennœ, the circular form of the 

 femur of the sixth pair of pereiopoda, the length of the same pair in 

 comparison with the seventh; the equal length of the rami of the last 

 pair of uropoda. The differences from S. ultramarina will be men- 

 tioned below. 



