Megaciella anisochela Lehnert, Stone & Heimler, 2006, sp. nov. ...

• Main Authors: Lehnert, Helmut, Stone, Robert, Heimler, Wolfgang
• Format: Text
• Language: unknown
• Published: Zenodo 2006
• Subjects: Biodiversity; Taxonomy; Animalia; Porifera; Demospongiae; Poecilosclerida; Acarnidae; Megaciella; Megaciella anisochela; Alaska; Aleutian Islands
• Online Access: https://dx.doi.org/10.5281/zenodo.6253489; https://zenodo.org/doi/10.5281/zenodo.6253489

Megaciella anisochela sp. nov. (Fig. 2 a–f, Fig. 3 a–b) Description The holotype is a stalked, fan­shaped sponge (Fig. 2 a) and was growing on a small boulder. The species has also been observed growing on exposed bedrock. The dimensions of the short stalk are 2 x 0.5 cm and the fan­shaped body has an irregular outline measuring approximately 11 x 5.5 cm. It is beige colored in ethanol. The surface is finely hispid with no recognizable oscules. It has a soft and elastic consistency. Skeleton: The ectosome is a thin translucent membrane with tangentially arranged tylotes, single or in small bundles, facing in all directions within the tangential plane. The ectosome contains very abundant isochelae and is supported by underlying styles. The choanosome is partly a unispicular reticulation and partly there are ascending paucispicular tracts of two to four spicules connected by single spicules. Ascending tracts of styles are the length of one choanosomal style apart, penetrate the ectosomal membrane and cause the ... : Published as part of Lehnert, Helmut, Stone, Robert & Heimler, Wolfgang, 2006, New species of deep­sea demosponges (Porifera) from the Aleutian Islands (Alaska, USA), pp. 1-35 in Zootaxa 1250 on pages 4-6, DOI: 10.5281/zenodo.173010 ...