ANNELIUES. 
485 
amiulated, and obtuse behind ; posterior segments spinous ; two 
hooked gold-coloured spines under the neck; mouth naked, 
fleshy, auriform or ear-shaped, contractile; no eyes. 
Genus 3 —LUMBRJCUS.— Linnaeus. 
Generic Character. — Body contractile, lengthened, cylindri¬ 
cal, annulated; rings with small spines directed backwards; 
mouth near the extremity, naked, with two lips, the upper one 
largest and projecting; no eyes; anal orifice at the posterior ex¬ 
tremity. 
TRIBE II.-HIKUDINEiE. 
Body without projecting bristles. 
Genus 4.—ERPOBDELLA.— Lamarck. 
Generic Character. —Body depressed, posteriorly terminated 
by a prehensile disk ; mouth without teeth or jaws ; with ocular 
points. 
Genus 5.— PHYLLINE. 
Generic Character. —Body depressed, short, nearly oval, and 
gelatinous; terminated posteriorly by a flattened disk, large and 
provided with hooks. 
Genus 6. — PISCICOLA.— Blainville. 
Generic Character. —Body cylindrical, elongated, anteriorly 
attenuated, with dilated extremities; mouth without teeth; 
four eyes. 
Genus 7.—PONTOBDELLA.— Leach. 
Generic Character. —Body elongated, cylindrical, with warts, 
spinous tubercles, distinct annulations, and the extremities di¬ 
lated by a prehensile disk; mouth without teeth or jaws ; no 
eyes ; vent above, near the posterior disk. 
Pontobdetta spinulosa. — The Spined Pontobdella. 
Plate XCIII. fig. 3. 
Body with remote spines, and annulated. Inhabits the Bri¬ 
tish seas, adhering to the skate. 
2 n 3 
