47 
TAB. XXIII. 
CANCER Spinus. 
Spine-backed Shrimp. 
Class 5. Insecta. Order 7 . Aptera. 
Gen. Char. Feet S (rarely 6 or 10). Claws 2. 
Palpi 6 unequal. Eyes 2, distant, generally pe- 
dunculated, elongated, moveable. Jaws horny, 
thick. Lip triple. Fail jointed, unarmed. 
Spec. Char. Thorax with a serrated ridge and a, 
tooth on each side of it. Third joint of the ab- 
domen with a spine. 
We should be glad, by Mr. Simmons’s example, to awaken 
the zeal of naturalists, that we may have the pleasure to see 
our native rarities made public. It is a laudable endeavour 
to inquire into what we possess, and in time many useful 
discoveries may ensue. The present species would, by its 
extraordinary yet certainly curious formation, never tempt 
any one; yet custom, and the delicacy of most of the genus 
as a viand, have made it agreeable to many, nor do we know 
of any that are liable to be particularly hurtful, for the 
supposed danger from a crab in the muscle is a vulgar 
error. 
(The wolf-fish, at Scarborough, is despised for its clumsy 
and voracious-looking jaws; but, though ugly in appearance, 
h is equal to most fish in the opinion of the unprejudiced.) 
