Miscellaneous. 235 



the chela itself is very slightly broader than in Nephrops norvegicus, 

 the spines of the carinse are a little less prominent, though the 

 carinas are spinulose or minutely tuberculose nearly to the tips of 

 the digits, and the spaces between the carinse are thickly tubercu- 

 lose, and not pubescent. The remaining perseopods are very nearly 

 as in NepJirops norvegicus. 



The pleon is in general very much like that of Neplirops norve- 

 gicus, but the whole dorsum is pubescent, and the second, third, and 

 fourth somites have only an inconspicuous, transverse, dorsally 

 interrupted, and densely pubescent sulcus in place of the much 

 broader and conspicuous sulci upon all the somites of Nephrops nor- 

 vegicus. The depressions on the bases of the pleura are deeper than 

 in Nephrops norvegicus, and the inferior angles are more obtuse, and 

 not distinctly hooked, as in that species. The second to the fifth 

 pleopods are smaller and their lamellae much narrower than in the 

 Homarus americanus or the male of Nephrops norvegicus, 



[I have had no female Nephrops for comparison.] 



Measurements in millimetres. 



Length from tip of rostrum to tip of telson .... 142"0 



Length of earapax, including rostrum 69 "5 



Length of rostrum 24"3 



Length of rostrum in front of spines 13 "0 



Breadth between tips of antennal spines 21*5 



Greatest breadth, at branchial regions 25*0 



Height of earapax 26'0 



Length of eye-stalk and eye 6*0 



Greatest diameter of eye 7'0 



Length of antennal scale 4'1 



Breadth of antennal scale 2-0 



Length of left cheliped 112-0 



Length of merus 32"0 



Length of carpus 22'0 



Length of chela 54'0 



Breadth of chela 12-5 



Leng-th of dactylus 24'0 



Length of second perseopod 69-0 



Length of merus 23*0 



Length of carpus 10"5 



Length of chela 18-5 



Breadth of chela 3-0 



Length of dactylus 6'0 



Length of third perseopod 65-0 



Length of merus 19'5 



Length of carpus 9'6 



Length of chela 20-5 



Breadth of chela 2'8 



Length of dactylus 6*0 



Length of fourth perseopod 67'0 



Length of propodus 15"6 



Length of dactylus 8*7 



Length of fifth peraeopod 58*0 



Length of propodus , 15'0 



