Bryozoa of Floridan Oculina reefs Author Judith L Winston text Zootaxa 2016 4071 1 1 81 journal article 10.11646/zootaxa.4071.1.1 8ffe5a88-06f7-44af-95aa-5fd49e0302c4 1175-5326 260490 D47C792F-E91D-40A6-ABB7-FA7810578562 Akatopora leucocypha (Marcus, 1937) ( Fig. 9 ; Table 8 ) Crassimarginatella leucocypha Marcus, 1937: 46 , pl. 8, fig. 20A, pl. 9, figs 20B, C; 1938: 20, pl. 3, figs 8A, B. Conopeum reticulum (part): Osburn 1940: 351. Antropora leucocypha : Shier 1964: 613 ; Winston 1982: 123, fig. 36; Winston & Håkansson 1986: 9, figs 14–16. Akatopora leucocypha : Winston & Vieira 2013: 110 , fig. 7. TABLE 8. Measurements in mm of Akatopora leucocypha (Marcus, 1937) .

Lz	Wz	Lop	Wop
N	18	18	18	18
Mean	0.391	0.271	0.243	0.145
SD	0.059	0.038	0.035	0.018
Min	0.288	0.216	0.198	0.126
Max	0.486	0.360	0.324	0.180

Material examined. VMNH no. 70607, 70608; USNM no. 1283234. Description. Colonies encrusting shells of living and dead gastropods, including very small gastropods found in Oculina rubble ( Fig. 9 B). Zooids oval to irregular in shape. Lateral walls with scattered tubercles. Frontal membrane underlain by a distally narrowing cryptocystal rim, with granules arranged along radial rows ( Fig. 9 E, F). Well-calcified basal walls with thick internal vertical ridges. Triangular or rounded kenozooids with similarly patterned cryptocyst found between autozooids ( Fig. 9 A, C). Small avicularia with semicircular mandibles may also occur. Ooecia indicated by a narrow crescent of calcification ( Fig. 9 G). Remarks. Gordon (1986) suggested that two species of Antropora , A. leucocypha and A. tincta should be included in Akatopora because, like the type species Akatopora clausentina Davis, 1934 , zooids have a reduced cryptocyst, enlarged opesia and small kenozooids in the interzooidal angles. This decision was followed by Winston & Vieira (2013). Akatopora leucocypha is distinguished by its lack of avicularian condyles and in having a semicircular avicularian mandible (see Marcus 1937, pl. 8, fig. 20A). In Florida Akatopora leucocypha is common on gastropod shells from intertidal to continental shelf depths. Distribution. Cape Hatteras to Brazil , Caribbean, and Gulf of Mexico .