260 Prof. J. C. Schiodte 07i the 



lata. Palpm labrum amplectens, triarticulatus, articulo 

 terminali inter antennas primi paris recepto, producto, 

 gracili, conico, apice spinoso. 



MaxiUce priores stiliformes, mala interiore et palpo carentes. 

 Mala exterior cum stipite concreta, in orificium liaustelli 

 eminens, falcata, acie bifariam dentata, dentibus produc- 

 tis, incurvis, pei'acutis. 



Maxillce jjosteriores tot?e contlgufe, malas maxillarum priorum 

 obvolventes, cardine stipiteque concretis, palpo nullo. 

 Malce discretas, breves, coniese, spisse verrucosre, orificium 

 haustelli supra palpos pedum maxillarium claudentes. 



Pedes inaxWares prosterno maximo, foriiicato, ad luedium caput 

 provecti, maxillas utriusque paris includentes, cardine 

 magno, obliquo, laminato, triangulo, malis nullis. Stipi- 

 tes contigui, recti, clavati, fornicati, lijpostoma produc- 

 tum, medio carinatum utrinque explentes. PaJpi biarti- 

 culati, latissimi, 'foliacei, fornicati, toti contigui, labia 

 inferiora haustelli formantes. 



Lingua laminata, nuda, biloba, lobis late rotundatis, introrsum 

 contiguis, rimam suctoriam includentibus. 



The Danish species of Anthura occurs rather near to the 

 coast in shallowish water, where usually no other fishes than 

 some species of Gohius and quite young flounders occur ; speci- 

 mens kept in captivity Avork about in the mud with serpentine 

 movements. It does not therefore seem probable that our 

 Anthura lives on fishes. At the same time, however, Spence 

 Bate and Westwood conclude their article on Anthura cari- 

 nata (ii. p. 162) with these words : — " The following vignette 

 represents some fishermen drawing in a seyne full of fish, on 

 most of which these Crustacea attach themselves." 



18. The study of the structure of the mouth in Amphipoda, 

 as in Cnistacea generally, has hitherto been directed towards 

 the most pressingly necessary object — that is, the discovery of 

 reliable marks for the distinction of the various divisions of 

 these animals. For this purpose it has been sufficient to ex- 

 amine the outline and armature of the individual parts of the 

 mouth; and in this direction many of the zoologists to whom v.'e 

 owe our present knowledge of Amphipoda have made valuable 

 contributions, most of all Kroyer, whose diligent and consci- 

 entious investigations may be said to have opened a new era 

 in the special study of this order. But in spite of many iso- 

 lated attempts, this mode of working has not sufficed to pro- 

 cure us an insight into the true types of the structure. The 

 method applied in the present series of investigations, viz. the 

 study of the parts in their anatomical connexion and their 



