Doto uva Er. Marcus, 1955

Cetra, Nicolás & Roche, Andrea, 2023, Nudibranchia (Mollusca: Gastropoda) from San Matías Gulf, Northern Argentine Patagonia, Zootaxa 5244 (5), pp. 455-473 : 467-468

publication ID

https://doi.org/ 10.11646/zootaxa.5244.5.3

publication LSID

lsid:zoobank.org:pub:21F87739-7A95-4A6C-8887-A8E22A40120A

DOI

https://doi.org/10.5281/zenodo.7663826

persistent identifier

https://treatment.plazi.org/id/4D6287F0-9D40-1B4B-FF01-FA33292F8400

treatment provided by

Plazi

scientific name

Doto uva Er. Marcus, 1955
status

 

Doto uva Er. Marcus, 1955 View in CoL

( Figures 6C, 6D View FIGURE 6 , 7C, 7D View FIGURE 7 )

Material examined. Argentina, San Matías gulf: Plataforma, one specimen, 10 m, 21/02/2017 (ESCM-Ma-50); Plataforma, one specimen, 7 m, 03/2017; La Salvadora, three specimens, 11 m, 04/2017 (ESCM-Ma-46); Plataforma, three specimens (two specimens deposited MLP-Ma 14657) 10 m, 08/2017; Plataforma, four specimens, 5 m, 09/2017; Plataforma, three specimens, 8 m, 01/2018 (ESCM-Ma-18) .

Description. Length up to 8 mm, body elongate and smooth, translucent whitish with darker spots. Smooth rhinophores with blunt apices, surrounded by rhinophore sheaths. Up to six cerata are present on each side of the body, it has 3-5 rings of 3-6 semiglobular tubercles and a tubercle at the top. The tubercles decrease in size towards the peduncle ( Figure 6C View FIGURE 6 ). Radular formula 75-90 x 0.1.0 (MLP-Ma 14657). The rachidial teeth are arched with up to five lateral denticles on each side of the central cusp ( Figures 7C, 7D View FIGURE 7 ).

Geographic distribution and depth range. Key Largo, Florida ( Marcus & Marcus 1960); S„o Paulo, Brazil ( Marcus 1957); Gulf of Ancud to Bay of Coliumo, Chile ( Schrödl 2003), whereas Fischer & Cervera (2005) considerably extended its known geographical distribution to northern Chilean coast (see Fischer et al. 2006) and Peru ( Uribe et al. 2013). Found on rocky bottoms between four and 12 m depth.

Biology. Found on hard bottoms associated with hydrozoans. Difficult to find due to its small size. The lightcream colored egg masses are thin, undulating ribbon of about 5 mm length. It is filled with numerous tiny, oval, encapsulated eggs ( Figure 6D View FIGURE 6 ).

Remarks. The genus Doto has three species in the Argentinean Province, Doto caramella Marcus, Er. 1957 , Doto pita Marcus, Er. 1955 and Doto uva Marcus, Er. 1955 ( García & Bertsch 2009). This species was originally described for S„o Sebasti„o, Brazil ( Marcus 1955), later Marcus (1959) recorded it in the Gulf of Ancud, extending its distribution to the southern coast of Chile. Schrödl et al. (2005) recorded it from the southern Chile in the Comau Fjord. Fischer & Cervera (2005), considerably extend the known distribution range to Tongoy and Tocopilla and the Chilean coast. Uribe et al. (2013) extend the distribution north to Ica, Bahia Independencia, Peru. In the present work, the know range of the species is expanded to the Argentine Sea. This wide southern South America distribution should be confirmed with further integrative studies.

Kingdom

Animalia

Phylum

Mollusca

Class

Gastropoda

Order

Nudibranchia

Family

Dotidae

Genus

Doto

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