77 



1, eye and scale. 



2, auditory antennae (internal). 



3, olfactory antennse (external). 



4, mandible. 



5, first maxilla, with enlarged view of cutting edge. 



6, second maxilla. 



7, third maxilla. 



8, internal maxilliped. 



9, external maxilliped. 

 10, first cheliped. 



11-13, second to fourth do. 



14, fifth pair of chelipeds. 



15, first pleopod, male. 



16, second do. do. 



17-19, third and fourth do. ; the corresponding numerals on the right- 

 hand side of the plate show the same limbs in the female. In 17-19, c 

 has been inserted for m. 



20, posterior pleopod. 



md 4, carapace upper view ; regions, /, frontal ; ^, gastric ; hh, hepa- 

 tic ; ca, cardiac. 



The figure below this shows the fifteenth to twenty-first somites, 

 with attached coxa (ex). 



Gejttjs III. — Galathea. 

 Anterior chelipeds strong, equal, didactyle. 



External maxillipeds elongate, subpediform ; terminal joints narrow; 

 carapace depressed, beaked. 



Abdomen depressed ; no spines on somites ; six anterior abdominal 

 somites appendiculate in male ; appendages of first somite wanting in 

 female. 



Telson unappendiculate, submembranaceous. 



Antennse unappendiculate ; external long ; internal inserted beneath 

 eye-stalks ; peduncle elongate. 



Eyes large, with a hairy scale (?). 

 Eostrum depressed, moderately broad. 



Species I. 



Scaly Spanish Lobster. — -Plate XI. 



Galathea squamifera (Leach). 



Galathea squamifera. Leach, Mai. Pod. Brit., t xxviii., A, excluding 

 Fig. 2. 



Cancer astacus squamifer, Montagu. 



