Armadillogorgia albertoi, Cerino, Nadia & Lauretta, Daniel, 2013

Cerino, Nadia & Lauretta, Daniel, 2013, Armadillogorgia albertoi sp. nov.: a new primnoid from the Argentinean deep sea, Zootaxa 3741 (3), pp. 369-376 : 370-374

publication ID

https://doi.org/ 10.11646/zootaxa.3741.3.5

publication LSID

lsid:zoobank.org:pub:50B6C089-E45C-4E0A-B742-EF570137EA11

DOI

https://doi.org/10.5281/zenodo.5658355

persistent identifier

https://treatment.plazi.org/id/EB5A460D-4C43-715F-FF37-F8BFA8B32480

treatment provided by

Plazi

scientific name

Armadillogorgia albertoi
status

sp. nov.

Armadillogorgia albertoi View in CoL sp. nov.

Figs. 2–4 View FIGURE 2 View FIGURE 3 View FIGURE 4 .

Type material. Holotype: MACN-IN 39212-I, 1 colony, 155 miles off Buenos Aires, Argentina St. Nº38 (37º 59,308'S; 54º 25,207'W), May 2013, 1099 m. Paratypes: MACN-IN 39213-II & -III, 2 colonies, off Buenos Aires, Argentina St. Nº38 (37º 59,308'S; 54º 25,207'W), May 2013, 1099 m; MACN-IN 39214-I, II & III, 3 colonies and 3 SEM stubs (from MACN-IN 39214-I) with sclerites and polyps, off Buenos Aires, Argentina. St. Nº16 (37º 57.288’ S; 54º 23.456’ W), August 2012, 1307 m; MACN-IN 39215-I & -II, 2 colonies, off Buenos Aires, Argentina. St. Nº36 (37º 57,508'S; 54º 23,989'W), May 2013, 1289 m; Invertebrate collection of MLP-Oi 3807, 1 colony, off Buenos Aires, Argentina. St. Nº42 (37º 59,110'S; 54º 41,136'W), May 2013, 877 m; MLP-Oi 3808, 1 colony, off Buenos Aires, Argentina. St. Nº35 (37º 54,045'S; 54º 24,091'W), May 2013, 1245 m; MLP-Oi 3809, 1 colony, off Buenos Aires, Argentina. St. Nº41 (38º 01,631'S; 54º 30,275'W), May 2013, 997 m.

Description. Colonies unbranched (flagelliform). Specimens range from 13 to 116 cm in height (holotype 25 cm), just one have a holdfast ( Fig. 2 View FIGURE 2 D). Whorls of polyps not beginning immediately above the holdfast ( Fig. 2 View FIGURE 2 AD). Live colonies light pink. Stem 1–4 mm in diameter (holotype 1 mm) without polyps, 4.5–7.5 mm with polyps (holotype 4.5 mm). Calyces in whorls of up to 15 polyps, 2–7 mm tall (holotype 3–5 mm), facing upward ( Figs. 2 View FIGURE 2 A, 3A), adaxial side of calyces adnate to stem; 10–15 whorls per 4 cm of axis (holotype 13 whorls). Polyp tip folds over polyp base of the anterior whorls ( Figs. 2 View FIGURE 2 C, 3A). Adaxial scales not in ordered rows ( Fig. 3 View FIGURE 3 G). Distal most body scales (abaxial and adaxial scales) not differentiated to form an operculum or marginal scales. The polyp tip is a simple, unadorned pore ( Fig. 3 View FIGURE 3 C). The top of circumoral sclerites are big and rectangular shape, smooth with proximal side (to the base of the polyp) tuberculate and lanceolate scales on the bottom ( Fig. 4 View FIGURE 4 C). Abaxial scales decrease in size from polyp tip to base; abaxial surface of polyp covered by two rows of 44–55 thin imbricated sclerites ( Fig. 3 View FIGURE 3 E). These cover only the abaxial half of the body contour ( Fig. 3 View FIGURE 3 DF). Sclerites meet in an alternating (zigzag) pattern on the calyx abaxial midline ( Fig. 3 View FIGURE 3 E). Outer surface of sclerites curved and expanded ( Figs. 3 View FIGURE 3 D, 4A). This trait gives sclerites a J-shape covering upper lateral edge of the polyp body ( Fig. 3 View FIGURE 3 D). Distal area of inner surface of scales smooth with tuberculate proximal area ( Fig. 4 View FIGURE 4 A). Each lateral of polyps and adaxial surface with lanceolate sclerites overlapping one another ( Figs. 3 View FIGURE 3 G, 4B). Coenenchyme composed of two layers of sclerites; outer layer have two different shape, goblet-shaped sclerites and oval sclerites with inner surface tuberculate and outer surface smooth ( Fig. 4 View FIGURE 4 D), inner layer consists of tuberculate spheroids ( Fig. 4 View FIGURE 4 E).

Etymology. Nadia Cerino named the species after Dr. Alberto Cerino, grateful for having shown her how to love life, nature and freedom and for teaching her by example to fight without giving up. She is who she is because of him.

Kingdom

Animalia

Phylum

Cnidaria

Class

Anthozoa

Order

Alcyonacea

Family

Primnoidae

Genus

Armadillogorgia

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