556 THE VOYAGE OF H.M.S. CHALLENGER. 



liollandiee, Haswell, on tlie one hanJ, and, on the otlier, Leiieotlioe comniensdlis with the 

 closely allied species or varieties Leucothoe diemenensis, HasweU, and Leucothoii yracilis, 

 HasweU. MelUa australis, Haswell, is said to be very nearly allied to the Melita setipes, 

 Dana, from Singapore. Additional particulars are given to supplement the original 

 description by Haswell of Mcera ramsayi, but that species is now recognised by Mr. HasweU 

 as a synonym of Mxra ndiromaridata, Stimpson, which is also here described, but from 

 imperfect specimens. A specimen, from which the head was wanting, is described under the 

 provisional name of Mcera crassimana. Another imperfect specimen is described, but not 

 named. "In the form of the anterior legs and in the coloration it resembles .4?«j;7«'ttoe 

 seiosa, Haswell, from Botany Bay, but diflfers in the form of the palm of the second leg, 

 and, I suppose, of the posterior uropoda." Megamcera suensis, Haswell ?, is very fully 

 described, and this description Mr. Haswell accepts as applying to the ordinary form of his 

 species, so that Mr. Miers' alternative name, Megamcera hagwelli, is not needed. Megamann 

 tliomsoni, pi. 34. fig. B., is described and figured as a new species, though near to, and 

 possibly only a variety of, Alegamcera semiserrata, Sp. Bate, or Megamoera hrevicaudaia, 

 Sp. Bate, which are British species. Its points of distinction from Megamara masfersti, 

 Haswell, are pointed out, but nevertheless Mr. Haswell in his latest revision considers it a 

 synonym of that species. Podocerus ausind/s, Haswell, is briefly discussed. Notes are 

 given upon CapreUa xqnilihra, Say, and a specimen, pi. 34. fig. C, is doubtfully referred to 

 Caprella attenuata, Dana, of which Mr. Haswell has since observed, " the species figured 

 by Miers is very diifereut from the adult G. attenuata, but may be an immature form." 

 From the Seychelles a new species is described (p. 567) and figured under the name Mcera 

 diversimanus, pi. 52, fig. D. It is compared with Mun-a truncatipes (Spinola) from the 

 Mediterranean, and with Moe^i'a ramsayi, Haswell, already noticed, and it is suggested as 

 possible that more specimens might oS"er transitional characters serving to unite the two 

 forms. 



1884. Schneider, J. Sparre. 



Undersdgelser af dyrelivet i de arktiske fjorde. II. Crustacea og Pycnogonida 

 indsamlede i Kvsenangsfjorden 1881. (Aftiyk af Troms0 Museums aarsliefter VII.) 

 Troms0. 1884. pp. 56-134. PI. I-V. 



A new species is figured (Tab. I. & II.) and described under the title Menigrates {Orcliomene ?) 

 arcticus. Complaint is made, as has been done by several authors, of the minute and 

 over subtle distinctions on which Boeck has founded some of his numerous genera in his 

 subfamily Lysianassinse, the resxdt often being, as in this instance, that the author of a 

 new species cannot decide in which of the genera he ought to place it. Another new species, 

 Metopa siplsbergi (Tab. III. & IV.), here figured and described, is said to be akin to 

 Mefopa longicornis, A. Boeck. A species described and figured in 1883 as Monoculodes 

 norvegicus is here separated from that species and recognised as a new one under the name 

 Monoculodes tessellatus, Schneider, agreeing in part with (Ediceros affinis, Goes, the last- 

 named author being supposed to have confused two species together, one of them being 

 Moituculodes tessellatus, the other Mo7wculodes horealis, A. Boeck. 



Besides the description of new species, many important observations are given in regard to 

 species already known. Among others, Pardalisca cuspidata, Kr0yer, is discussed. 

 Schneider, comparing his own drawings with Boeck's, finds that the maxillipeds differ some- 

 what, and that the second maxillas assigned in Boeck's plate to Pardalisca in fact belong to 

 Syrrhoe crenulata. In some points he finds that his drawings correspond far better with 

 Boeck's description of Pardalisca ahyssi than with that of Pardalisca cusjndata. In the full 



