154 



armed outside with an exceedingly strong spinitbnn appendage; while another 

 peculiar!}' transformed appendage projects from near the tip, and is connected witli 

 th<- base of the former by a narrow chitinous strip running along the under sur- 

 face of the joint, the freely projecting part of the appendage being folded abruptly 

 upon itself in a peculiar manner, and terminating in a very narrow upturned point. 



Body in both sexes of a pale yellowish green colour, and generally filled 

 with numerous refracting oil-globules. 



Length of adult female about 1 mm. 



Remarks. -The above-described species is unquestionably identical with a 

 form recorded by Th. Scott from the Arctic Ocean under the name of J)({cti/lt>i<* 



var. nrrtica. As this form in reality is very different from Dactylopus 

 i Cls. (- D. nilijnrix G. 0. Sars), I have felt justified in reviving for it a 

 M8name given to this form by the late Dr. A. Boeck. Its nearest ally is evi- 

 dently A. tiniUix, from which species it may be easily distinguished, however, 

 by its mo'-e robust body, the distinctly 9-articulated anterior antennae, and the 

 structure or the 1st pair of legs and that of the inner ramus of the 2nd pair in 

 the male. 



()<-ft<rri'Hc<'. I have found this form occasionally off the west coast of 

 Norway at Christiansund and Aalesund in moderate depths among algae. Off the 

 Finmark coast, this species is much more frequently met with. I have myself 

 taken it at Hammerfest and Vadso, and in some samples taken by Mr. Xordgaard 

 at Repvaag in the Porsanger Fjord, and kindly sent to me for examination, this 

 form occurred rather abundantly. 



Ditfrilitititiit. Arctic Ocean, off Franz Josef Land (Scott), and polar islands 

 of (-Jrinnell Land (2nd Fram Exited.). 



!)7. Amphiascus minutus (Clans). 

 d'l. xcvh. 



niiniifns. Cl;iiis, Die I'n-il.'hrnilni ( '. .prpncliMi. p. ll'd, I'l. XVI. li-s. II. 1"). 



Syn: I>losn,-i /.-, ulii/sxi. 

 Daclitl"i>nx I'nitiiriis/rix. S.'citt (in.) Chins). 





c < 'htii-nrtt')-*. FrHtiilr. |!ody moderately slender and slightly attenu- 

 ated behind. (Vphalie segment about the length of the .'! -uccccding segments 

 combined: rostrum well drvchtped and of usual appearance. Urosome about, - :; 

 the length of the anterior dhiMuii of the body, last segment much shorter than the 

 preceding one. Caudal rami very short, being almost twice as broad as they are 



