Plakina tanaga Lehnert, Stone & Heimler, 2005, n.sp. ...

• Main Authors: Lehnert, Helmut, Stone, Robert, Heimler, Wolfgang
• Format: Text
• Language: unknown
• Published: Zenodo 2005
• Subjects: Biodiversity; Taxonomy; Animalia; Porifera; Homoscleromorpha; Homosclerophorida; Plakinidae; Plakina; Plakina tanaga; Alaska; Aleutian Islands
• Online Access: https://dx.doi.org/10.5281/zenodo.6266656; https://zenodo.org/doi/10.5281/zenodo.6266656

Plakina tanaga n.sp. Material: holotype: 6204­18­12, collected by HL in Little Tanaga Strait (51°52`14.6``N, 176°15`42``W) at 146 m depth. The holotype is deposited at the Senckenberg Museum, Frankfurt/Main, Germany under the registration number SMF 10323. Description: The holotype is a fragment of a larger sponge, scraped off the surface of a vertical bedrock wall. In life, it is a beige or light brown encrusting sponge (Fig. 1). In ethanol it is still light brown with reddish tinges in the interior. It is common on vertical and overhanging sides of bedrock and boulders and covers relatively large areas (approx. up to 0.5 m 2) with a thickness of approx. 1–1.5 cm. It has a convoluted surface with deep grooves between strands with a microtuberculated surface, thus somewhat rough to the touch. Tubercles are 120–440 µm in height and 60–320 µm in diameter and closely spaced. It’s consistency is cheese­like, only slightly compressible. The interior is dense. No oscules were visible on the fragment collected but, ... : Published as part of Lehnert, Helmut, Stone, Robert & Heimler, Wolfgang, 2005, Two new species of Plakina Schulze, 1880 (Porifera, Plakinidae) from the Aleutian Islands (Alaska, USA), pp. 27-38 in Zootaxa 1068 on pages 29-30, DOI: 10.5281/zenodo.170249 ...