A M. \ or in fin's 



deairtptifin nf lliis 



species 



540 TAGE SKOGSBERG 



pectinata and Philomedes (Ph.) globosa; cf. p. 146 of this treatise) is in favour of the first alter- 

 native. For this reason I have not adopted the statement as to length given by G. 0. Sars. 

 I give for what it is worth G. 0. Sars's information as to the shell: ..altitudine maxima . . . ante 

 medium sita" and the statements that ,, antennae, pedes mandibulares et maxillae structura fere 

 exacta eademac in ^. won'eg^ica" and,, laminae postabdominales breves unguibus 5 . . . armatae". 

 G. s. Brad,, and The description of this species given by G. S. Brady and A. M. Nor.max, 1896, p. 636, 



is only a translation of Sars's original description into English. Two figures of the shell, one 

 representing the side view, the other the shell as seen from below, are added by these authors, 

 pi. LII, figs. 18, 19. The figures were drawn from a specimen of which it is stated that it was 

 ,,kindlv given to us by the describer", i. e. presumably the same specimen as is re-described 

 and reproduced by me above. Of these two figures no. 18, that of the shell seen from the side, 

 shows a fairly close resemblance to fig. 1 given by me above, the other figure, the shell seen from 

 below, differs, on the other hand, very considerably from the corresponding figure given by me. 

 This is perhaps due to the superficial way in which these writers have proceeded. It does 

 not seem impossible, however, that there has been a confusion between the figures and that pi. LII, 

 fig. Yl, A. elliftica, the shell seen from below, represents A. ahyssicola, while fig. 19 belongs to A. 

 elliptica. At any rate, if this change were carried out, there would be considerably closer agreement 

 between the figures given by Brady and NORMAN and the forms that are actually found in nature. 



Distribution: — Lofoten, Norway; depth, 220 m. (S.^RS 1870). Between Finmark 

 and Beeren Island (Station 290 of the Norwegian North -Atlantic Expedition 

 1876—1878); depth, 345 m. (Sars 1886). 



Type specimen of the re-description on slides in the Chr. Z. M. 



Genus Cyclasterope G. S. Brady. 



Cijdasterope, G. S. Brady, 1897. Asterope, G. W. MOller, 1890 and 1912. Cylindro- 

 leberis, G. W. Muller, 1906 b. 



Diagnosis: — Shell: — This varies very much in type. In most cases, but not always, 

 however, it has a well-marked posterior corner. The rostral incisur is comparatively deep and 

 narrow. The surface of the shell has no sharply projecting sculpture; it is almost smooth. It 

 is strongly calciferous. The forms are relatively large. 



First antenna: — Disto-posteriorly on the fourth joint there are more than two 

 bristles, some of which are rather long. The sensory bristle of the fifth joint is very powerful 

 in the male and has a very large number of accessory sensorial filaments on the medial side of 

 the bristle, arranged in numerous more or less distinct stages. This antenna has seven bristles 

 distally, both the d- and e-bristles are developed; the a-bristle is claw-shaped; the c- and f-bristles 

 are much lengthened in the male. 



