6 - Sphaeromatidae::“Cute As Buttons”

Paracerceis glynni 221
pleotelson inflated, faintly tripartite, with strong median conical tubercle;
notch in posterior margin shallow, with low median tooth and tiny lateral
denticles; posterolateral margins finely dentate. Uropodal exopod cylindri­
cal, distally denticulate, six to seven times longer than basal width. 9: Per-
eon and pleon much as in 6 y but pleotelsonic notch shallower and
posterolateral margins not denticulate. Uropodal rami subequal, lamellar,
exopod with distolateral angle acute.
RECORDS Carrie Bow Cay, Belize, 15-16 m. Only known from sponge
Callispongia plicifera growing on outer reef slope.
Paracerceis edithae Boone, 1930
Figure 97C-E
DIAGNOSIS 6 4.0 mm, 9 3.1 mm. 6: Posterior three pereonites and
pleonites each with irregular row of small tubercles near posterior margin,
densely setulose tubercles becoming spinose more posteriorly. Pleotelson
with strong median conical tooth in anterior half, flanked by convex spinose
mound. Pleotelsonic notch deep, with elongate median basal tooth bearing
strong acute tooth at its base. Lobes of posterior pleotelsonic margin broad,
flattened, margins denticulate. Uropodal exopod tuberculate, tapering, api-
cally acute. 9: Integument much less tuberculate-spinose than in 6. Imma­
ture 9, posterior margin of pleotelson with faintly rounded median lobe. In
mature 9, posterior margin distinctly trilobed. Uropodal rami subequal,
lamellar, distally rounded, with tiny distolateral spine on exopod.
RECORDS Bahamas, 60-66 m, in vase sponge; Haiti; Puerto Rico, 20—25 m.
Paracerceis glynni Kensley, 1984
Figure 97F,G
DIAGNOSIS 6 6.4 mm, 9 5.2 mm. 6: Integument becoming strongly setose
and tuberculate posteriorly from about pereonite 5. Posterior margin of inf­
lated anterior area of pleotelson bearing strong median conical tubercle and
smaller acute lateral tubercle, with low swelling beneath each lateral tuber­
cle. Posterior notch deep, narrow, with small basal median tooth, lobes form­
ing notch tricuspid, outer cusps recurved dorsally. Uropodal exopod fairly
straight, cylindrical, apically acute. 9: Body far less setose and tuberculate
than 6. Pleotelson with strongly inflated anterior area having very faint mid-
dorsal tubercle; notch well marked, formed by triangular lobes of