Callyspongia abnormis Pulitzer-Finali, 1993: 340
Porifera from Ponta do Ouro (Mozambique)
Calcinai, Barbara
Belfiore, Giuseppe
Pica, Daniela
Torsani, Fabrizio
Palma, Marco
Cerrano, Carlo
European Journal of Taxonomy
2020
2020-08-06
698
1
56
8KPTN
Pulitzer-Finali, 1993
Pulitzer-Finali
1993
[451,1137,1461,1488]
Demospongiae
Callyspongiidae
Callyspongia
Animalia
Haplosclerida
11
12
Porifera
species
abnormis
Euplacella
Fig. 7
Callyspongia abnormis Pulitzer-Finali, 1993: 340, fig. 78.
Material examined PONTA DO OURO• 5 fragmentspreserved dry, the larger is about 10 × 3 cmand 4 mmthick; 26°49′17.512″ S, 32°53′42.518″ E; Kev’s; 23.4 mdeep; 3 Feb. 2017; Cerranoleg.; PO5• 1 fragmentalcohol preserved, 1 dried fragment about 13 × 6 cm× 4 mm; 26°47′34.8″ S, 32°53′57.665″ E; Close; 18.6 mdeep; 9 Feb. 2017; Cerranoleg.; PO30• Slide preparations of the holotype, labelled MBA 167, belonging to the author’s personal collection.
Description Live sponges erect, foliaceous, lamellar, about 4–5 mmthick, and with scattered, digitate processes ( Fig. 7A–B). On one side of the sponge, roundish vents, about 300–400 μm in diameter, are grouped ( Fig. 7B), while on the opposite side, numerous pores are scattered and not visible to the naked eye. The Fig. 7. Callyspongia( Euplacella) abnormis Pulitzer-Finali, 1993. A. The specimen PO30 in situ. B. Magnification of the specimen PO5, with groups of roundish vents in evidence (arrow). C. Ectosomal skeleton. D. SEM picture of the ectosomal skeleton. E. Choanosomal skeleton. F. SEM picture of the choanosomal skeleton. G. Oxea and magnification of the tip. color in life is brick red; ochre in preserved specimens. Surface optically smooth, but microhispid at microscope magnification. The consistence is soft and compressible, rough at touch. SKELETON. Ectosome ( Fig. 7C–D) formed by a reticulation of paucispicular (2–5 oxeas) fibers, 18–35 µmin section, with no marked difference between primary and secondary fibers; the meshes are irregular and 150–350 µmwide, and are echinated by free spicules. Choanosome ( Fig. 7E–F) formed by reticulation of thicker, paucispicular (4–8 oxeas) fibers, 30–45 µm, that form irregular, rounded or polygonal meshes, 230–360 µmwide. SPICULES. Slender and slightly curved oxeas with acerate tips, 90–(102.5, 11.9)– 115 µm× 2–(5, 1.4)– 6 µm( Fig. 7G).
Remarks These samples fit with C. abnormis Pulitzer-Finali, 1993from Mombasa, Kenya, in external morphology, skeleton structure, and spicule shape and size. The examination of the slides of the holotypeconfirms the identification. This new finding allowed us to assign the species to the subgenus Euplacella, considering that the ectosomal skeleton is made by one size of small rounded mesh, echinated by spicules. This is the first record of the species since its original description.
2825837327
2017-02-03
PO
Cerrano
23
-26.821531
PONTA DO OURO
1
32.895145
PONTA DO OURO
11
12
PO5
5
2825837305
2017-02-09
PO
Cerrano
19
-26.793
1
32.899353
11
12
PO30
1