220 CRUSTACEANS. 



Plate LX. 



Fig. 3. Claw, enlarged. 



4. Detached ova, enlarged. 



5. Young from the capsule, enlarged. 



6. Head of the same enlarged. 



7. Tail of the same enlarged. 



Plate LXI. 



Fig. 2. Cast shell— slough of Plate LX. fig. 1. 



Note. — Many subjects, congenera of the Crangon, dwell in the Scotish 

 seas. I regret extremely that when some of the most curious and beauti- 

 ful occurred, a number of years ago, I had not then the means of pre- 

 serving sufficient materials for their history. It is long since I have 

 been deprived of suitable opportunities for resuming that branch of 

 zoological research. A few drawings, indeed, remain, but I would avoid 

 converting them to their original purpose, unless corroborated by re- 

 peated observations. Therefoi'e I shall restrict myself to very little 

 more on the subject, as an appendix to the preceding paragraph. 



§ 4. Pandalus ANNULicoRNis — The Ring-horn Shrimp. — Leach. — 

 Plate LXI. figs. 1, 3, 4, 5. 



Though this is not identified at present with the genus Crangon, 

 the diiference was not acknowledged by former naturalists. 



The animal extends five inches from the tips of the antennae to the 

 extremity of the tail. 



The whole body is finely variegated red and white ; and the annu- 

 lations of the antennae are red and white alternately. Females have 

 been full of roe in small spherical white capsules, spreading over the 

 abdomen, in February, March, and April. The eyes of the young herein 

 appear very conspicuous, on approaching maturity ; some have been 

 produced in the middle of February. 



