irtiich hangs free in the water,the second the portion 

 nrhich is inside the host, and this shows that the ani- 

 nal ouries itself deeply and goes through the oluofter 

 into the flesh. The aDdomen is ab@ut 13 min, long, 

 md oears 23 pairs of many Dranched,threadlii:e plu- 

 mles; Under the dorsal horn are situated the us- 

 lal four pairs of extremely small swimming legs, and 

 >n the dorsal surface the usual antennae. But we 

 lay notice that at the anterior end of the older spec- 

 iens there were 110 traces of mouth-parts to oe seen, 

 'eeause as we presume the whale had been hard frozen 

 or many weeKs,and af ter thawing became somewhat pu~ 

 rid,when the Pennellas were cut out. 



To the forego ing contribution to the icnow- 

 edge of the four mentioned Atlantic species we can 

 dd a little with reference to the development or 

 ennellas in general. Of the four species we 

 ave for the f irst one half-developed and young spec- 

 mens,whicn Resides lacKing the egg-strings,have only 

 aint traces of plumules,or absolutely no visible 

 races of them, and in which the corresponding abdomen 

 s weaKly developed and the body only a little or not 

 t all swollen. They lacK also in this stage one 

 the essential characters of the genus Pennella,and 

 >rrespond alaost to such figures as are given in 

 ivier's Regne Animal Zooph.pl. 31, f lg . 2 ,cf P.blainviliai 



