CHRISTIANIA VIDENSK.-SELSK. FORHANDL. 1883. No. 7. 



Gnathophausia inflata, Willem. Suhni, M. S. 



Hab. Off Am isl., Arafura Sea (Stat. 191) 800 fms. 1 single, 

 very large, specimeu, (leiigth: 157 mm.), adult female, with enorm- 

 ously developed incubatory lamellæ. 



■1. Gnathophausia f/igas, Willem. Suhni. 



Gnathophausia </jV/av, Willem. Suhtn, Transact. Linn. Soc. Lond. 2 ser. Vol 

 1, pg. 28, pl. IX fig. 16—17, pl. X fig. 2-3. 



Hab. North Atlantic, W. of Azores (Stat. 69), 2200 fms. 1 

 single specimen, adult male. 



5. Gnathophausia calcarata n. sp. 



(Gnathophausia gigas var. Willem. Suhm, M. S.) 



Integument råtner linn. Carapax with strongly marked lateral 

 keels, the dorsal keel obsolete in the middle, very high anteriorly, 

 posteriorly produced in a short, but distinct, spine. Rostrum nearly 

 as long as the carapax. straight, acuminate, rather broad at the 

 base, and. as usual provided with •"> rows of teeth, one dorsal, and 

 two laterals. Posterior angles of carapax produced in very long. 

 and slender, finely serrate, spiues. Supraorbital denticle obsolete, 

 antennal and brancliiostegal spine, well defiued, the last very large, 

 and serrate. Postabdominal segments sculptured with transverse 

 furrows, the epimera produced in two acuminate lobes of nearly 

 equal size. Epimeral spines of the last segment, as in the two 

 preceeding species, very large, and partly connected on the ventral 

 face. Eyes narrowly pyriform, with rather long pedicles. Anten- 

 nal scale, rathei" small, entire, without any transverse suture, ovate. 

 the outer margin sligbtly serrate, apex obli<iuely truncate, inner 

 edge somewhat i)roduced. Telson very large, strongly spinous at 

 the margins, terminal spines strong. and divei gent. separated by a 

 broad, semilunar emargination. Uropods much shorter than the tel- 

 son, and of the usual form. Length of the largest specimeu 98 mm. 



Hab. Off Aru isl.. Arafura sea (Stat, 191), 800 fms.. 1 sped- 



