374 Dr. T. Scott on some 



are tolerably large, but the third is rather shorter than the 

 other three, which are subequal ; the four end joints are 

 slender and the first three are moderately short, but the 

 terminal one is somewhat elongated and nearly twice the 

 length of the preceding joint. The formula shows approxi- 

 mately the proportional lengths of the various joints : — 



1.2.3.4.5.6.7.8 



10 10 9 11 8 6 7 12 



The antennae are small and are provided with a very small 

 outer ramus. The second maxillipeds are also small ; the 

 hand is narrow and of moderate length, and bears a minute 

 seta near the distal end of the inner margin. The inner 

 ramus of the first pair of thoracic legs is elongated and slender ; 

 the proximal joint reaches beyond the end of the outer 

 ramus, but the other two are short ; the joints of the outer 

 ramus are subequal and moderately stout, and furnished 

 with long spiniform setae (fig. 4). The other natatory legs 

 are slender and moderately elongated (fig. 5). Fifth pair 

 broadly fbliaceous ; the inner portion of the proximal joint 

 is rather narrower than the outer distal one, and its obliquely 

 truncated end is provided with four setae of moderate length ; 

 the distal joint is tolerably expanded, its outer and inner 

 margins are nearly parallel, and its extremity is irregularly 

 triangular and furnished with five setae arranged as shown in 

 the drawing (fig. 6). The caudal rami are very short. 



One or two specimens of this minute form occurred in the 

 same tow-net gathering with the PseudotJialestris previously 

 described. This species has some resemblance to Amphiascus 

 minutus, G. S. Brady, from Kergnelen Island, but differs in 

 the form of the fifth pair of legs and in one or two other 

 anatomical details. The male was not observed. 



Fam. Laophontidae. 



Genus Laophonte, Philippi, 1810. 



Laophonte insiynis, sp. n. (PI. XIII. figs. 10-15.) 



Female. — Somewhat similar to the female of Laophonte 

 gracilipes, G. S. Brady, from Kerguelen Islaud. Antennules 

 moderately short and composed of seven articulations ; the 

 first three joints are large and together are equal to nearly 

 two-thirds the entire length of the antennule ; the remaining 

 joints are small, but the two end joints are rather longer than 



