PHILORTHRAGORISCUS SERRATÜS. 137 



NOTE XIV. 

 PHILORTHRAGORISCUS SERRATÜS KR. 



(DiNEMATÜEA SEREATA Ke.) 



Dr. R. HORST. 



(Plate 7). 



Foemina : Cephalothorax divisus. Seginentum secundum et 

 tertium inter se coalitum , alatmn , elytris nullis , quartum elytris 

 duobus maximis , segmenti genitalis rotundati , postice profunde 

 incisi, dimidiam partem tegentibus , instructum. Pedes abdo- 

 minales trium parium anteriorum ramis biarticulatis , setis 

 plumosis instructis , quarti paris minimi , ramis uniarti- 

 culatis, setis plumosis nullis. Cauda biarticulata ^ folio 

 dorsali nullo , segmento genitali fere obteeta. Fila ovigera lon- 

 gissima. 



Mas : differt a foemina magnitudine minore , fgura ely- 

 trorum , praesertim pedihus abdominalihus tertii paris , hamulo 

 magno in ramo interno instructis. 



Hab. Orthragoriscus nasrts , ad corporis superficiem. 



Upon the skin of a specimen of Orthragoriscus nasus , 

 caught in November of last year in the neighbourhood of 

 Helder*), I found, besides numerous s^ecimeus of Laemarg us 

 muricatus , several female individuals of an other member 

 of the family Caligidae , as far as I know off hitherto not 

 mentioned as a parasite of this fish. They proved to belong 



1) Notes Leyd. Mus. Vol. XVIII, p. 209, pi. 3. 



Notes from thie Leyden Musetim, "Vol. XIX. 



