6 - Sphaeromatidae::“Cute As Buttons”

Paradella 223
m, from green alga Halimeda sp. on forereef, and from sponge Aphysina
jistularis.
Paracerceis nuttingi (Boone, 1921)
Figure 97H
RECORDS Barbados; Puerto Rico, 1.5 m, from Cymodocea seagrass, and coral
rubble and sponges.
REMARKS The types of this species from Barbados consist only of females
(total length 4.1 mm). Menzies and Glynn (1968) record an immature male
i
from Puerto Rico with an incipient pleotelsonic notch. This specimen, how­
ever, still has the subequal lamellar uropodal rami. The mature male, with
the characteristically reduced uropodal endopod and cylindrical exopod, is
unknown. The possibility exists that this is not a true Paracerceis.
Paradella Harrison and Holdich, 1982
DIAGNOSIS Marked
ual dimorphism. Accessory unguis of pereopods simple, not bifid. Pleopod 3
Key to species of Paradella
1. Pereonite 7 with projecting bilobed flange; pleon and pleotelson finely
but distinctly granulate 2
Pleon and pleotelson smooth 3
2. 8 with pleotelsonic foramen distinctly heart shaped, with median
point; four submedian tubercles of pleotelson in 8 and 9 somewhat
elongate; 9 pleotelson posteriorly narrowed, slit visible dorsally
8 with pleotelsonic foramen wider than long, but lacking median
point; four submedian tubercles of pleotelson in 8 small, rounded,
obscure in 9; 9 pleotelson posteriorly truncate, slit not visible
dianae
dorsally plicatura
3. Tubercles on pleotelson in 8 and 9 small to obscure; 8 with
pleotelsonic foramen subcircular quadripunctata
Tubercles on pleotelson broadly rounded mounds in 8 and 9; 8 with
pleotelsonic foramen wider than long tumidicauda