6 - Sphaeromatidae::“Cute As Buttons”

A Icirona 15 7
coupling hooks; palp of five articles. Gopulatory stylet in 6 articulating in
distal half of mesial margin of pleopod 2 endopod. Pleopods 3-5, exopods
biarticulate; endopods lacking marginal setae. Pleonite 5 lacking free lateral
margins, overlapped by pleonite 4. Uropodal sympod produced along mesial
margin of endopod.
Xylolana radicicola Kensley, 1987a
Figure 72
DIAGNOSIS 8 2.6 mm, 9 3.3 mm. Body about four times longer than great­
est width. Uropodal exopod about 2 fo width of endopod, bearing single short
subapical spine; both uropodal rami distally rounded. Pleotelson with lateral
margins subparallel, with poorly defined middorsal longitudinal ridge.
RECORDS Twin Gays, Belize, in dead red mangrove roots, 1 m.
Family Corallanidae Hansen, 1890
DIAGNOSIS Outer ramus of maxilla 1 apex with single strong falcate spine,
with single strong spine with one or more smaller hooked spines at base, or
with two large recurved spines, occasionally with one to three smaller spines
between them. Maxillipedal endite reduced or lacking.
Key to genera of Corallanidae
1. Maxilla 1 with single strong falcate spine 2
Maxilla 1 with two large falcate spines Alcirona
2. Maxilla 2, distal article slender-elongate; article 2 of maxillipedal palp
longest Nalicora
Maxilla 2 distally bluntly bilobed; article 3 of maxillipedal palp longest
Alcirona Hansen, 1890
Excorallana
DIAGNOSIS Antennular peduncle of two articles. Mandible lacking molar.
Maxilla 1 having two large recurved spines, with one or more smaller spines
between these. Maxilla 2 a simple rounded lobe. Maxilliped lacking endite.
Posterior half of body hirsute.