REPORT ON THE PYCNOGONTDA. 77 



The ovigerous legs are inserted ventrally close to the lateral process of the first pair 

 of legs. Of the first three joints, which are small, the thii-d is the longest ; the fourth 

 is a great deal longer, and the fifth is the longest of all, in the males it has a 

 strong knob near the extremity ; the sixth joint is almost as long as the fourth. The 

 four last joints show no great difference ; from the seventh to the tenth they 

 gradually diminish in length and in breadth. The claw is as long as the tenth joint, 

 and on the inside is furnished with a row of small spines. The hairs on the joints 

 of the ovigerous legs are not very strong. I have figured the denticulated spines in 

 PI. XL fig. 5. 



The legs are very long. The second joint is thrice as long as the fii'st and as the third. 

 In the female it is considerably swollen towards the extremity, where the genital 

 opening is observed on the ventral surface. Of the three following joints the fourth 

 and the fifth are nearly of the same length, whUe the sixth is almost once and a half as 

 long. The first tarsal joint is extremely short, and the second about eight times as long. 

 The claw is half as long as the second tarsal joint. The joints of the leg are furnished 

 with extremely long and slender spines ; two are placed at the distal extremity of the 

 first joint, two in the middle of the second joint, and two others towards the extremity 

 of that joint ; a row of slightly shorter ones is observed on the dorsal surface towards 

 the extremity of the third joint ; the fourth, fifth, and sixth joints are also furnished with 

 some of these hairs placed at irregular distances from one another ; towards the extremity 

 of these joints a certain number of these hairs is invariably observed. The first tarsal 

 joint (fig. 6) shows only a few very short spines, whereas the second tarsal joint 

 towards the side opposite to the claw is furnished with a complete row of very stout 

 spines. Most of these spines, like the greater part of those placed on the other joints, 

 are not quite smooth, but are furnished on one side with sharp short triangular hooks 

 not unlike the teeth of a saw. 



Of the three specimens of this species, one is a female, and two are males. I believe 

 they are all full-grown animals. One of the males shows the remains of egg-jsackets adher- 

 ing to the ovigerous legs. The genital openings of the females are much larger than 

 those of the males. Both sexes have them placed ventrally on the second joint of all 

 the legs. 



Habitat. — This beautiful species was dredged in the neighbourhood of Melbourne. 



Station 162. April 2, 1874. Ofi" East Moncoeur Island, Bass Strait. Depth of the 

 sea, 38 to 40 fathoms. Bottom of the sea, sand. 



Also between Melbourne and Sidney at Station 163. April 4, 1874. Lat. 36° 56' S., 

 long. 150° 30' E. Trawled in 120 fathoms. Ofi" Twofold Bay. 



Observations. — Perhaps this species is nearly allied to Pallene chiragra, MUne- 

 Edwards, Histoire naturelle des Crustacds, torn. iii. p. 535. He gives the following descrip- 

 tion of this species : — " Corps trfes-grele ; tete courte mais cylindrique. Second article 



