Reptadeonella brasiliensis Almeida, Souza, Sanner & Vieira, 2015

Almeida, Ana C. S., Souza, Facelucia B. C., Farias, Jamile, Alves, Orane F. S. & Vieira, Leandro M., 2018, Bryozoa on disarticulated bivalve shells from Todos os Santos Bay, northeastern Brazil, with the description of two new species, Zootaxa 4434 (3), pp. 401-428 : 407

Reptadeonella brasiliensis Almeida, Souza, Sanner & Vieira, 2015

( Fig. 3E, F ; Table 4)

Reptadeonella brasiliensis ALMEIDA, SOUZA, SANNER & VIEIRA, 2015 : P. 357, fIgS 19–28, 39, 40 (CUM SYN.).

Material examined. UFBA 1636, UFBA 1645, on valves of Pinctada imbricata .

Description. Colony encrusting ( Fig. 3E ), unilaminar. Autozooids hexagonal to rhomboidal ( Fig. 3F ), surrounded by 18–25 large, marginal pores. Frontal wall centrally imperforate, finely granular. Primary orifice transversely elliptical, wider than long, occupying about one-sixth of orifice length. Areolar pore transversely narrow, placed immediately proximal to orificial rim, visible in some zooids ( Fig. 3F , arrow). Secondary orifice raised, surrounded by a calcification with small nodules around the rim. Suboral avicularium median, triangular, rostrum directed distally, extending about half to one-third of zooidal length. Spiramen ( Fig. 3F , circle) crescentic, placed approximately in the center of the frontal wall, below the suboral avicularium. Gonozooid not observed.

Remarks. Reptadeonella brasiliensis is among the commonest intertidal cheilostomes in NE Brazil, frequently found attached to hard substrata such as other bryozoans, shells and rocks ( Almeida et al. 2015b).

Distribution. Western Atlantic: Brazil (Ceará to Bahia; Fernando de Noronha) (Almeida et al. 2015b).

Figures

FIGURE 3. A, B. Akatopora leucocypha (MARCUS, 1937), UFBA 1632. A. OVERVIEW Of A COLONY. B. CLOSE-UP SHOWINg AUTOZOOIDS AND KENOZOOIDS (ARROWS). C, D. Licornia Aff. diadema (BUSK, 1852), UFBA 1626. C. BIfURCATINg BRANCH AND A TUBULAR HOOKED RHIZOID (ARROW). D. ENLARgEMENT Of AUTOZOOIDS, SHOWINg PADDLE-SHAPED MEDIAL OPESIAL SCUTA (ARROW), LATERAL (CIRCLE) AND fRONTAL (DASHED CIRCLE) AVICULARIA, AND TUBULAR SMOOTH RHIZOID (DASHED ARROW). E, F. Reptadeonella brasiliensis ALMEIDA, SOUZA, SANNER & VIEIRA, 2015, UFBA 1636. E. GROUP Of AUTOZOOIDS. F. CLOSE-UP Of SOME AUTOZOOIDS, SHOWINg THE SUBORAL AVICULARIUM, AREOLAR PORE (ARROW) AND SPIRAMEN (CIRCLE). SCALE BARS: A, 500 µM; B–E, 200 µM; F, 100 µM.