39S 
Dr. Leach's Arrangement of the Crustacea, S^-c, 
Long. Corp. ^ unc. 
Habitat in canibus, arctb se affigens. 
Rostrum pallideferrugineuni. Vagina ferrugineo-fusca. Cly- 
peus utrinque lineola transversd excavate. Scutum fuscum, ro- 
tundatum, punctatum, utrinque lineolis duabus impressis, und a 
inargine anticoad medium, altera interna ultra medium tendenti- 
bus. Pedes fusci, articulis apiceque pallidis. 
Spec. 4. Ixodes megathyreus. 
Ix. scuto majore obovato cum vagind pedibusque fuscis, abdo- 
mine rufescente. 
Long. Corp. vix ^ unc. 
Habitat in canibus et in Erinaceo europreo cum praecedente fre- 
quentissimb, cujus forte mas. 
Rostrum pallide ferrugineum. Vagina fusca. Clypeus utrin- 
que puncto transverso, excavato. Scutum majus punctatum, 
fuscum, antice submarginatum, utrinque lineolis duabus impres- 
sis quae ultra medium tend tint. Pedes fusci, apice articulisque 
pallidis. 
Spec. 5. Ixodes autiimnalis. 
Ix. scutoi ovato-subhexagono subferrugineo-fusco, vagind pedi- 
busque ferrugineis : articulis albidis. 
Habitat in canibus (praecipub in illis Anglicb Pointers dictis) tem- 
pore autumnali, raribs. 
Vagina ferruginea, ferrugineo-fusca marginata. Cljpeus utrin- 
que excavatus. Scutum subferrugineo-fuscum. Pedes ferrugi- 
nei, articulis pallidis, albidis, interne et externb subfusci. Abdo- 
men plumbeum, lineis tribus obscurioribus impressis. Tarsi pal- 
lidi, albidi, articulis saturatioribus. 
Spec. 6. 
