VI 96 



Carl Zimmer. 



55. Dactylerythrops dactylops H. u. T. 



Fig. 192, 193. 



1905. Dactylerythrops dactylops Holt u. Tattersall, risheries Ireland Sei. 



Invest. 1902/03. IV p. 121—122. tab. 22. 



„Form robust. Carapace of nearly even width througliout, anteriorly gibbous, 

 anterior margin obtusely rounded, posterior margin somewhat emarginate. Eyes 



small, remote form each other, their inner 

 faces bound to the anterior margin of 

 the head by a wide membranous inte- 

 gument: visual elements in the form of six 

 to eight plates set in mosaic about a 

 central pyriform body; distal extremities 

 produced into digitiform flexible processes 

 about as long as the visual parts. 

 Antennular peduncles with the distal Joint 

 mucli the longer; much more robust in 

 the male than in the female. Male appen- 

 dage very hirsute. Antennal scale about 

 threeanda halftimesaslongasbroad; outer 

 margin slightly curved, terminating in a 

 spine of moderate size; apex rather obtu- 

 sely rounded, produced considerably bcyond 

 the spine of outer margin, reaching or 

 slightly exceeding the level of the distal 

 extremity of antennular peduncle. Basal 

 Joint of antenna wide and massive, distal 



Fig. 192. $, Ansicht von oben. 



Fig. 193. Telson. 



Joint of peduncle of flagellum the longer, reaching to about the distal third of 

 antennal scale. Mouth organs (as far as can be made out in the absence of 

 dissection) as usual for Meterythrops. Thoracic limbs (of which the endopodites 

 are all wanting) with the flagellate parts of the exopodites nine-jointed; male 

 appendages well-developod, but of moderate length; female with two pairs of 

 incubatory lamellae. Pleon with the first five Segments sub-equal, the sixth about 

 one and a half times as long as the fifth. First pleopods in the male with the 



