143 



13 specinu'iis (5 inales and (S feinnlos, all yoiing i'xecpt onc 

 female of medium size with eggs), captured May 1914 at a depth 

 of 0,5 to 2 M. in the Nyborg Fjord, Denmark, between Zosteya 

 and received from tlic Danske Biologiske Station. 



9 female specimens, 4 of which are egg-bearing, from the 

 Gulf of Naples, received from the Zoological Station. 



The rostral formulae of 40 specimens from Denmark and from 

 Bergen, Norway, are tlie following: 



-"—— one specimen from Nyborg Fjord, in which the a])ex of 



the i'ostrum is brokeii off'. 

 (3 + 1 . () + O 



These formulae teacli us that in the variety Fabricii Ratiike 

 the upper margin (Fig. 2(/ — 2?') is usually armed with six teeth 

 and the lower with three., in harmony with Rathke's description 

 of P. Fahririi: according to this author in the typical L. adspersus 

 from the Black Sea the upper margin should be usually armed 

 with fice and the lower with fonr teeth. As a great exception 

 the rostrum presents two apical teeth in stead of one and very 

 rarely also the upper teeth are situated along the whole length 

 of the rostrum, in which case no „apicaF' tooth exists. 



In one specimen from Nyborg Fjord seven teeth were placed 

 on the upper margin. Like in the typical species from Sebastopol 

 the rostrum usually projects a little beyond the scaphocerites, but 

 ofteii it is just as long as the scales ; also as regards its direction 



