The legs of the 4"^ pair are slender and reach to the end of 2"<J antennular article. In 

 the adult female the merus, 3,35 mm. long and 0,36 mm. broad, appears 9-times as long as broad; 

 the three last joints are respectively 2,35 mm., 2,1 mm. and 1,5 mm. long; the dactylus, ii-times 

 as lonor as thick at its base, is straight and narrows regularly towards the extremity. Legs of 

 S''* pair still longer and a little more slender. 



The thelycum is characteristic and consists, in the adult female, of the following parts: 

 i" of a trapezoid, upstanding plate or tubercle between the legs of the 3'''^ pair; this plate, 

 directed obliquely forward, is nearly as long as broad at base and the anterior border that 

 is less broad than the base and emarginate, presents at either angle an acute tooth, while 

 the converging lateral margins are sharp ; this upstanding tubercle is followed, 2" by two 

 much broader, horizontal plates, of which the anterior is shorter than the posterior and that 

 project forward in the middle; these plates are situated between the legs of the 4''^ pair and 

 finally, 3" by a narrow, horizontal plate between the legs of the 5'*^ pair; this plate that joins 

 the large, strongly compressed processes of the coxae of the 5''' legs, is slightly longer than 

 broad, concave above and the rounded, posterior margin is notched in the middle ; the inner 

 margins of the coxal processes are sharp and at a right angle with their much shorter, 

 anterior margin. 



There is a sharp tooth between the pleopods of the 1=' pair and smaller prominences 

 are observed between the following. 



The mandibular palps and the meri of the 2''^ and 3'''! maxillipeds are of a fine violet 

 colour; the carpal joints of the external maxillipeds and of the two first pairs of pereiopods 

 are marked with a large violet spot at the far end of their upper surface and there 

 is a smaller spot of the same colour at the base of the fingers of these legs, while the fingers 

 are reddish or orange. 



fe 



The five males from Stat. 230 certainly belong to this species. In two males of equal 

 size the petasma is already developed, these males are 22 or 23 mm. long and their carapace, 

 rostrum included, measures just one-third the length of the abdomen. The distal margin of 

 each of the two laminae, of which the petasma consists, terminates, not far from the median 

 line, in a broad rounded lobe and, on the outer side of this lobe, in two narrow teeth, the 

 tooth next to the lobe being longer and sharper than the other at the outer angle and slightly 

 curved forward and outward; between the two large lobes are four very small teeth, the outer 

 of which are larger than the inner; the large rounded lobe and the two lateral teeth of each 

 lamina are separated by small, tooth-like lobules. One observes, moreover, on the anterior 

 surface of the petasma, two small, compressed, dentiform lobes not far from the distal margin 

 and near the median line of the organ. In the third male, which is a little larger, the carapace, 

 rostrum included, being 6,75 mm. long, the two laminae of the petasma a.re not yet in contact; 

 instead of the large, rounded lobe on the distal border one observes here a triangular, pointed 

 process, the acuminate tip of which is curved forward. In the fourth male, that has nearly the 

 same size as the third, the carapace, rostrum included, being 6,5 mm. long, the two laminae are 

 also free, but smaller. In the youngest male finally, (carapace with rostrum 5 mm. long), the 



