48 DE. Or. S. BRADY ON THE 



Section III. SIPHONOSTOMA Thorell. 



Family ENTOMOLEPIDiE, fam. nov. 



Genus Entomolepis \, gen. nov. 



Dorsal surface covered by a thin, oval, scale-like shield, beyond which the extremities 

 of the limbs project only slightly. Antennules slender, simple ; antenna? prehensile ; 

 swimming-feet two pairs (1). Abdomen short, slender, and, like the cephalothorax, 

 completely covered by the scale-like dorsal investment. 



1. Entomolepis ovalis, sp. nov. (Plate XIII. figs. 18-21.) 



Outline, as seen from above, oval, widest in the middle, width equal to more than 

 half the length (fig. 18). Antennules ten-jointed, slender, the penultimate joint 

 bearing a long and stout sensory filament (fig. 19) ; the comparative lengths of the 



. , „ ., . r t 1.2.3.4.5.6.7.8.9. 10 . ,, . . t , 



joints as in the following lormula : t>3 1 - 4 4 g 5 7 7 io 8 ' Antennae three-jomted 



(fig. 20), the basal joint bearing at its apex a minute secondary branch ; second joint 

 with a row of fine cilia on its distal half; third joint small and having a stout terminal 

 unguis. Maxilla simple, two-jointed, the second joint pubescent and bearing three 

 long terminal setae. Two pairs of foot-jaws (figs. 18 d, e), stout, prehensile, like those 

 of Dyspontius. Siphon slender and of moderate length ; swimming-feet two pairs (1) 

 two-branched, each branch composed of three joints (fig. 18/). Length 1*3 millim. 



One specimen only was found among mud from a depth of 1-5 fathoms in Lyttelton 

 Harbour. 



The foregoing description is incomplete, owing to some of the parts having been 

 imperfectly seen, and it is to be hoped that some future observer may be enabled by 

 the help of further specimens to describe more fully what seems to be a very remarkable 

 form. 



Family ARTOTROGIDJE. 



Genus Artotrogus Boeck, 



1. Artotrogus ovatus Thomson. 



Artotrogus vat us Thomson (1), p. 113, pi. si. figs. 11-14. 

 In the surface-net off Port Chalmers. One specimen. 



2. Artotrogus brevicaudatus, sp. nov. (Plate XII. figs. 27-29 ; Plate XIII. 

 figs. 22-26.) 



Cephalothorax much narrowed in front, widest behind the middle ; abdomen very 

 short, only about one third as long as the cephalothorax (Plate XIII. fig. 22) ; siphon 



1 erTOfior, an insect ; Xe7rl$, a scale. 



