Reinhardorhynchus beatrizae Diez, Aguirre, Reygel & Artois 2021, sp. n (original) (raw)

2021

Abstract

Reinhardorhynchus beatrizae Diez, Aguirre, Reygel & Artois sp. n. (Fig. 10) urn:lsid:zoobank.org:act: 7191A493-CCA1-421D-88D5-99AD3D7E5705 Material and distribution. Observations on live specimens, whole mounted afterwards. Two whole mounts from Las Sardinas (19°56'24"N; 76°46'41"W) (Type Locality), Guamá, Santiago de Cuba, Cuba (June 22, 2016), one of which is designated holotype (FMNH https://id.luomus.fi/ KV.649), the other one in HU (XIII.4.03), silty sand in rock pools protected from wave action, 0.3 m deep, salinity 33 ‰. Six whole mounts and three serially-sectioned specimens (in poor conditions) from Siboney (19°57'34"N; 75°42'07"W), Santiago de Cuba, Cuba (September 4, 2016; March 22 & June 5, 2017), intertidal (upper 10 cm of fine-grained sand) up to 0.5 m deep (fine-grained sand rich in organic matter), salinity 33–35 ‰ (HU XIII.4.04– XIII.4.13). Two whole mounts from Bueycabón (19°57'38"N; 76°57'28"W), Santiago de Cuba, Cuba (February 6 & 21, 2018), fine-grained sand rich in organic matter, 0.5 m deep, salinity 33 ‰ (HU XIII.4.14– XIII.4.15). Etymology. Species dedicated to Prof. Dr. Beatriz Martínez Daranas, researcher at the Marine Research Centre of Havana University, Cuba), specialist in taxonomy and ecology of seagrass and macroalgae. Diagnosis. Species of Reinhardorhynchus gen. n. with the copulatory bulb encompassing the prostate vesicle, an armed cirrus and two distal hooks. Cirrus armed with triangular, ±4-μm-long spines. Cirrus also includes a ±347- μm-long spiny belt. Proximally in the belt the spines are scale shaped and ±23 μm long. Proximal spines followed by a section bearing ±6-μm-long spines that runs distally and ends in the distal comb-shaped part, which is armed with ±32-μm-long spines. Larger hook ±101 μm long and ±59 μm wide at its base. Its base bears a ±45-μm-long and funnel-like hook. Smaller hook ±89 μm long and ±47 μm wide at its base. Description. Live specimens are 1.5–2 mm long, translucent, with two eyes (Fig. [...]

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