148 MR T. V. HODGSON ON THE 



is very short and stout, the proportions of the remainder being 6, 5, 2'5, 2'5. The 

 second bears a few scattered setae and a well-marked distal fringe ; the third is rather 

 thinly covered with smaller setae, especially distally. On the ventral margin of the 

 two terminal joints the setae are stouter than elsewhere and very abundant ; dorsally 

 they are rather scanty but much longer. The last joint but one has a well-developed 

 distal fringe dorsally. 



The Ovigers are ten-jointed, and arise from stout processes on the ventral surface of the 

 neck. The first three joints are very small, and while progressively increasing in length 

 diminish in diameter. The three together are a little longer than the fourth ; the propor- 

 tions of this and the remaining joints are 8, 10, 7, 3, 2'5, 2, 2'2. The fourth joint is 

 curved and stout ; it bears a row of small setae along the greater part of its outer margin, 

 and a small distal fringe. The fifth joint is slender proximally, but considerably 

 enlarged distally, the transition being gradual and not abrupt ; it is covered, but not 

 very thickly, with long slender setae. The following (sixth) joint has its inner border 

 curved and is thinly covered with setse finer and shorter than those of the preceding 

 joint. Of the four terminal joints, the first two bear a distal fringe only, and the distal 

 pair bear a few long setae dorsally in addition. The terminal claw is very nearly as 

 long as the joint that bears it, and carries about eleven teeth. Most of them are long, 

 curved, and have a considerable interval between them. The denticulate spines are 

 numerous 1 1, 11, 8, 9 and consist of a tapering flattened shaft with four or five well- 

 developed broad teeth on each side ; traces of a sixth may sometimes be detected. The 

 second from the base is usually the largest. The spines on the terminal joint are on the 

 whole shorter and broader than elsewhere. 



The legs are long, attaining a length of nearly 42 mm. Of the three coxae, the 

 second is the longest, but scarcely as long as the other two together ; the proportions of 

 the remainder being 9, 11, 10, 3'5, 2, and 1 for the terminal claw, which is without 

 auxiliaries. The limb is setose throughout, but not in any conspicuous manner, the 

 setae being slender and rather long for the most part ; they are arranged in four rows, 

 dorsal, ventral, and lateral, and as usual are most conspicuous on the tibia? ; towards the 

 end of the second they tend to become spinous. They are small and numerous on 

 the tarsus, smaller still on the propodus, where the lateral rows are indistinguishable. 

 A lateral line is conspicuous throughout. The distal fringes do not offer any 

 special peculiarities, except that of the third coxa, which is very conspicuous 

 ventrally. 



The Genital apertures of the male are on the second coxae of the two posterior 

 pairs of legs ; those of the female are found on all the legs. 



The subject of this description is a fine male, which carries two small spherical 

 packets of rather large eggs slung over the proximal part of the fifth joint of each ovio-er 

 by stout threads. 



Three specimens were taken in 1775 fathoms, lat. 62 10' 5" S., long 41 20' W. 



There can be no doubt that these specimens are identical with N. compactum, Hoek. 



(BOY. soc. EDIN. TRANS., VOL. XLVI., 168.) 



