FIGURE 4. Spines attributed to A. ballenensis sp. nov. A–B, CASG 59779; C, spine found inside the peristome of CASG 91189, specimen 08. A–B, scale bars equal 2 mm. C, scale bar equals 1 cm.Published as part of Courville, Erwan, Mooi, Rich, Poulin, Elie & Saucede, Thomas, 2023, Arbacia ballenensis sp. nov. (Echinoidea, Arbacioida): A new species reveals diversification of the genus in Central America, pp. 555-566 in Zootaxa 5336 (4) on page 562, DOI: 10.11646/zootaxa.5336.4.6, http://zenodo.org/record/828217
FIGURE 4. Cherbonniera utriculus Sibuet. A. tables from body wall; B. denticulate/finely spinulated ...
FIGURE 4. Comparison of thoracic, anterior and posterior abdominal uncini. A, D, G, J, M) Thoracic u...
Figure 4. Echinopsyllus brasiliensis sp. nov., male. A, A1 ventral view; A′, A1 segments 4–8 (modifi...
FIGURE 3. A. ballenensis sp. nov. A–B, paratypes in CASG 91189, specimen 21; A, aboral view; B, oral...
FIGURE 2. A. ballenensis sp. nov. A–D, holotype CASG 103360; A, aboral view; B, oral view; C, latera...
FIGURE 1. Type locality, area and stratigraphy of Arbacia ballenensis sp. nov. A, locations of fossi...
FIGURE 4. Specimen (R 103 mm) of Astropecten brasiliensis brasiliensis Müller & Troschel, 1842 (UFBA...
FIGURE 4. Scanning electron micrographs: A, transverse section midway through a primary ambital spi...
FIGURE 4. Cassidulus caribaearum Lamarck, 1801 (CASIZ 222205 [neotype] [A–E]; CASIZ 112683B [F–G, I–...
FIGURE 4. Oswaldella terranovae Peña CanTerO & VerVOOrT, 1996 (SynTypes). A, hydrOcladial branching ...
FIGURE 4. Diopatra hektoeni sp. nov., paratype (AM W.49212), scanning electron micrographs. A, anter...
FIGURE 4. Morphological characters of Phormosoma placenta (EqMN2341). (A) Aboral view. (B) Detail of...
FIGURE 4. Drawings of Cassidulus infidus UFBA-314 showing: (A) floscele with peristome aperture in l...
Figure 4. Hippasteria heathi USNM holotype USNM 22338. Scale bar = 1.0 cm for all unless otherwise s...
FIGURE 4. Differences of the shape of the disc between specimens of Ophiothrix suensoni: A, disc pen...
FIGURE 4. Cherbonniera utriculus Sibuet. A. tables from body wall; B. denticulate/finely spinulated ...
FIGURE 4. Comparison of thoracic, anterior and posterior abdominal uncini. A, D, G, J, M) Thoracic u...
Figure 4. Echinopsyllus brasiliensis sp. nov., male. A, A1 ventral view; A′, A1 segments 4–8 (modifi...
FIGURE 3. A. ballenensis sp. nov. A–B, paratypes in CASG 91189, specimen 21; A, aboral view; B, oral...
FIGURE 2. A. ballenensis sp. nov. A–D, holotype CASG 103360; A, aboral view; B, oral view; C, latera...
FIGURE 1. Type locality, area and stratigraphy of Arbacia ballenensis sp. nov. A, locations of fossi...
FIGURE 4. Specimen (R 103 mm) of Astropecten brasiliensis brasiliensis Müller & Troschel, 1842 (UFBA...
FIGURE 4. Scanning electron micrographs: A, transverse section midway through a primary ambital spi...
FIGURE 4. Cassidulus caribaearum Lamarck, 1801 (CASIZ 222205 [neotype] [A–E]; CASIZ 112683B [F–G, I–...
FIGURE 4. Oswaldella terranovae Peña CanTerO & VerVOOrT, 1996 (SynTypes). A, hydrOcladial branching ...
FIGURE 4. Diopatra hektoeni sp. nov., paratype (AM W.49212), scanning electron micrographs. A, anter...
FIGURE 4. Morphological characters of Phormosoma placenta (EqMN2341). (A) Aboral view. (B) Detail of...
FIGURE 4. Drawings of Cassidulus infidus UFBA-314 showing: (A) floscele with peristome aperture in l...
Figure 4. Hippasteria heathi USNM holotype USNM 22338. Scale bar = 1.0 cm for all unless otherwise s...
FIGURE 4. Differences of the shape of the disc between specimens of Ophiothrix suensoni: A, disc pen...
FIGURE 4. Cherbonniera utriculus Sibuet. A. tables from body wall; B. denticulate/finely spinulated ...
FIGURE 4. Comparison of thoracic, anterior and posterior abdominal uncini. A, D, G, J, M) Thoracic u...
Figure 4. Echinopsyllus brasiliensis sp. nov., male. A, A1 ventral view; A′, A1 segments 4–8 (modifi...