CLASS T. CRUSTACEA. 
107 
Genus 18. STENOSOMA. Leach. 
- eternal antenna as long as the body, the third joint longer than the 
fourth: hotly linear. 
& P’ h St. lineurc. Last segment of the tail somewhat narrowed at its 
base, and dilated towards its apex, which is truncate and notched. 
n >scus linearis. Penn. Brit. Zool. iv. pi. 18. fig. 8. Idotea hectica. 
■both, Edin. ’Encycl. vii. 101. Slenosoma hccticum. Leach, Edin. 
Rncyd. vii. 433. Slenosoma lineare. Leach, Trans. Linn. Soc. xi. 366. 
~~Supp. to Encycl. Brit. i. 427. 
inhabits the European ocean. It sometimes occurs in the Firth of 
■forth, and amongst the Hebrides, 
•Ant, 
B, Tail on each side, with one or two appendices. 
Tam, V. Antiice. adie. Leach. 
Antenna inserted in nearly the same horizontal line : ventral appen- 
^ a ges closed by two longitudinal plates. 
Genus 10. ANTHUKA. Leach. 
p n na short, subequal ; inserted one after another in the same ho- 
riz ontal line, the internal ones a little longest: body linear: tail 
"jth the last joint but one very short; the last elongate, narrower, 
g Wl th two elongate lamellae on each side. 
P- 1. Art. gracilis. Lateral processes of the tail obliquely truncated. 
bScus gracilis. Montagu, Trans. Linn. Sue. ix. tali. 5 4' 6. Anthura 
S r acilis. Leach, Edin. Encycl. — Trails. Linn. Soc. — Sapp, to Encycl. 
Lrit. 
Fam. VI. CvMOTnoA d.e. Leach. 
Antenna: inserted in pairs, one above tlie other. 
‘^ Ti rps i. Tail with one lamella on each side, 
y Genus 20 . CAMPTECOPEA. Leach. 
with its last segment furnished on each side with a compressed, 
brved appendage : body six-jointed, the last joint of the same size 
" bh the others : antenna setaceous, upper ones longest, tlieir pe- 
u ncle Inarticulate, the space between the antennae very great : an- 
^nor clam bifid. 
1 ' ham. hirsnia. Brown ; the last joint of the body with a few 
0 f^nt blueish spots. 
lsClls hirsutus. Montagu, Trans. Linn. Soc. vii. t. 6. f. 8. Campte- 
‘-°Pca hirsuta. Leach, Trans. Linn. Soc. xi. 367. — Edin, Encycl, vii. 405. 
j n r A u -Pp. to Encycl. Brit. i. 427. 
V a J *ts the southern coast of Devonshire, but is rather rare. 
' n S l b one eighth of an inch. 
