ANNULOSE ANIMALS. 267 



also bought everywhere to the northward, in great quantities, of 

 the natives, who catch them by diving near the shore, and finding 

 out where they lie with their feet." Hawkesworth, Voyage of 

 Lieut. Cook, iii., p. 440, and vol. ii., pp. 325 and 328. 



Captain Cook called a place where he and his party partook of 

 these cray-fish " Luncheon Cove. " i., p. 78 (London edition, 

 1777). 



12. Paranephrops planifrons. White, in Gray's Zool. 



Miscell., p. 79. 

 Inhabits New Zealand, R. Thames. Dr. Die/enbach. 



The eyes are large, as in Nephrops : the sides of the second 

 thoracic segment, in the middle in front, with a spine, as in Pota- 

 mobius, and a shorter one beneath it : the lamellar appendage of the 

 outer antennae extends considerably beyond the thickened basal 

 joints of these antennae, and on the inside is nearly straight, and 

 margined with longish hairs : the first two joints of the outer 

 "foot-jaws" are spined within : the sides of the abdominal seg- 

 ments are not nearly so acutely angulated as in Nephrops : the 

 middle plate of the tail is of one piece, as in Nephrops, and has 

 the spine removed further back from the much-rounded extremity : 

 the first pair of legs is rather more slender than in Nephrops ; the 

 claws inside are nearly straight, and furnished with moderate- 

 sized teeth ; the hands are but slightly grooved, and have a few 

 rows of spines, largest on the inside : the second pair of legs is the 

 shortest of the four hind pair (while in Nephrops the fifth are so), 

 the second are the longest, the fourth and fifth being nearly equal 

 in length. 



This species, from the River Thames in New Zealand, connects 

 the two genera Potamobius and Nephrops, in having the habit of 

 the former, and combining the characters of both. 



The carapace of this species is almost cylindrical ; the beak 

 reaches beyond the pedicel of the inner pair of antennae, is straight, 

 broad, flattened, and somewhat hollowed out above ; the sides have 

 three teeth ; at the base to the side are two teeth, one placed before 

 the other ; at the base of the beak, in the middle, there is a slight 

 longitudinal abbreviated ridge ; the sides of the carapace, outside 

 the outer jaw-feet, have many short bent spines ; the abdominal 

 segments are smooth above; the caudal appendages are finely 

 striated at the end, and tinged with pinkish-red ; the thorax 

 covered with minute hairs ; the abdomen is of a yellowish, some- 

 what mottled colour; each segment behind with a very narrow 



