MACROURI. 207 



Multitudes of the young will burst their capsules while under ob- 

 servation. 



Plate LIII. 



Fig. 1. Cancer Bernhardus, the Hei-mit Crab, occupying a shell. 



2. Spawn in an early stage. 



3. Spawn in an advanced stage. 



4. Spawn in an intermediate stage. 



5. Young animal hatched from the spawn. 



6. Young prolific female. 



7. Young animal from the spawn of fig. 6. 



8. Another. 



PlATE LIV. 



Fig. 1. Cancer Bernhardus, Hermit Crab, out of the shell. 

 2. Small specimen, with a shell. 



§ 2. Galathea Spinigeea — The Thorny Bastard Lobster. — Plate LV. 



If the preceding animal, with four abortive limbs, be an interme- 

 diate link between the Cancer and the Astacus, the subject of this para- 

 graph, having only two abortive limbs, and eight of perfect formation, in 

 complete development, should bring us a step nearer the Lobster family, 

 its complement being the same in respect to number as that of the Crab. 



Though some species of the Galathca dwell in the Scotish seas, suffi- 

 cient opportunity has not enabled me to investigate their nature so pro- 

 foundly as required by the interests of science, — and this partly from 

 the rarity of the finest specimens, partly from the brief survivance of 

 some individuals to which my attention was devoted. 



A few of the Galathea spinigera only, have therefore come under 

 review, but enough to shew that it is one of the most beautiful, curious, 

 and symmetrical of the tribe. 



The general form of this animal bears much resemblance to that of 

 the Astacus marinus or common Lobster, but the proportions and colours 

 are somewhat different. It extends eight inches from the tips of the 

 antennae to a luxuriant fringe bordering the margin of the unfolded tail. 



