Part 2 - Sphaeromatidae::“Cute As Buttons”
Part 2 - Sphaeromatidae::“Cute As Buttons”
Part 2 - Sphaeromatidae::“Cute As Buttons”
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internal pouch<br />
Ancinus belizensis 205<br />
Figure 90. Diagrammatic representation of 9 sphaeromatid, showing marsupial<br />
structures (adapted from Harrison, 1984).<br />
Ancinus H. Milne Edwards, 1840<br />
DIAGNOSIS Eyes dorsal. 9 mouthparts not metamorphosed. Mandibular<br />
molar absent; palp of three articles. Maxilla 1 of single ramus, endite rudi<br />
mentary. Maxilla 2 of two rami. 9 with oostegites absent; brood held in two<br />
opposing pockets, opening as narrow ventral slit between pereopods 4. Pleon<br />
consisting of short anterior pleonite with free lateral margin, plus broadly<br />
triangular pleotelson. Pleopod 1 uniramous, endopod absent. Pleopod 2 op-<br />
erculiform. Pleopod 3, exopod of single article. Uropod lacking exopod, sym-<br />
pod not laterally expanded.<br />
Key to species of Ancinus<br />
1. Pleotelson as long as basal width, apex narrowly rounded . . . brasiliensis<br />
Pleotelson with basal width greater than length, apex subtruncate<br />
Ancinus belizensis Kensley and Schotte, 1987<br />
Figure 91A-C<br />
belizensis<br />
DIAGNOSIS 8 4.1 mm, 9 2.8 mm. Body oval, about twice longer than wide.<br />
Dorsal integument strongly pitted. Antennular flagellum of 12 articles; an-
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