PALINURUS. 
PALINURUS. Daldorf^ Fabricii , Lamar ck, Laireille , Rose, Leach . 
Antenna interiors breviores, setis duabus articulatis; exteriore breviore, compressa inferne 
dilatata, pedunculus Jongissimus 3-articulatus; articulis, primo longiore, secundobreviore : 
Exteriores setaceae longissim*, articulis tribus basilaribus crassissimis, spinosis; 
articulis aliis brevissiniis fasiculato-pilosis. 
Palpi pediformes articulis sex exsertis, ultimo acuminato, subobtuso, hispido. 
Ocuii pedunculo COmmuni transverso. 
Pedes decern; par anticum crassius, subdidactyl um indice abbreviato; pollice interne fasciculato- 
piloso; paria secundum, tertium, quartum et quintum simplicia, nuda; ungues fasciculate- 
pilosis apice curvati nudi. 
Abdomen 6-articulatum, segmentis lateribus spinoso-productis. 
Cauda pentaphylla; lamellis membranaceis processu medio elongato-subquadrato apice rotundato, 
basi crustaceo; processibus aliis squama Crustacea ad basin exterce. 
Interior antennas shortest, with two articulated seta;; the exterior seta compressed and 
dilated beneath ; peduncle very long, triarticulated, the first joint longest, the second shortest ; 
exterior antennae setaceous, very long, the three first joints very thick, spiny; the other j oints 
very short, with fasciculi of hairs. Feet-like Palpi with six exserted joints; the last acuminate 
sub-obtuse, hairy. Eyes with a common transverse peduncle, Legs ten ; anterior pair thickest, 
subdidactyle, the finger abbreviated, the thumb internally with tufts of hair. Other legs simple, 
naked; claws with tufts of hair, their points naked and bent. Abdomen six-jointed, the sides of 
the segments produced into spines. Tail composed of five membranous lamellae, the middle of 
w’hich is elongate-subquadrate, with its base crustaceous ; the others with a crustaceous scale 
at their base externally. 
Aristotle, Athenmus, and Pliny were acquainted with the animals of this genus, which they 
named s and Locusta , and used them as food. 
The Palinuri live on fish and on other marine animals; they have the power of producing 
a very loud noise by rubbing the first joint of their exterior antenna; against the projecting clypeus. 
All the species have a large spine over each eye, and from this part some of the subsidiary 
specific characters may be drawn. 
