Microeciella floridana,

Judith L Winston, 2016, Bryozoa of Floridan Oculina reefs, Zootaxa 4071 (1), pp. 1-81: 73

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Microeciella floridana


Microeciella floridana  (Canu & Bassler, 1928 a) comb. nov.

( Fig. 41View FIGURE 41; Table 40)

Peristomoecia floridana Canu & Bassler, 1928 a: 158  , pl. 31, figs 6–9. Proboscina floridana: Osburn 1940: 329  .

Material examined. VMNH no. 70663, 70664.

Description. Colony small, encrusting ( Fig. 41View FIGURE 41 A, B), with narrow growing margin. Zooids developing quincuncially in flat fan-like lobes, zooid peristomes free, erect to tilted at angle toward growing edge, without narrowed terminal diaphragm ( Fig. 41View FIGURE 41 D, E). Pseudopores relatively large, moderately dense, depressed ( Fig. 41View FIGURE 41 F). Gonozooid small, oval, with slightly more densely spaced pseudopores and short ooeciostome, tilted back toward colony origin ( Fig. 41View FIGURE 41 C).

Remarks. Specimens from the Oculina  samples are similar to the Eastern Atlantic material described and illustrated by Hayward & Ryland (1985) and De Blauwe (2009) as Eurystrotos compacta (Norman, 1866)  . In their revision of three encrusting genera of Oncousoeciidae, Taylor & Zaton (2008)  synonymized E. compacta  with Microeciella suborbicularis (Hincks, 1880)  . The gonozooids of the colonies in the Oculina  samples were ovoid and most closely resemble the material that Canu and Bassler named Peristomoecia floridana  , hence their species name has been used here.

Distribution. Floridan Atlantic shelf to Straits of Florida.

TABLE 40. Measurements in mm of Microeciella floridana (Canu & Bassler, 1928 a).

Mean 0.694   0.077 0.414  
  0.071   0.008 0.089  
  0.540   0.063 0.306  
  0.810   0.090 0.504