Notaulax punctulata Tovar-Hernandez , Garcia-Garza & de Leon-Gonzalez, Tovar-Hernandez, Garcia-Garza & de Leon-Gonzalez, 2020

Tovar-Hernandez, Maria Ana Ana, Garcia-Garza, Maria Elena & de Leon-Gonzalez, Jesus Angel, 2020, Sclerozoan and fouling sabellid worms (Annelida: Sabellidae) from Mexico with the establishment of two new species, Biodiversity Data Journal 8, pp. 57471-57471: 57471

publication ID

http://dx.doi.org/10.3897/BDJ.8.e57471

publication LSID

lsid:zoobank.org:pub:12E4F2DE-8A05-4A37-A0B5-DDAAE88DE23B

persistent identifier

http://treatment.plazi.org/id/82DF61FD-29A9-5227-A329-CC2C18422EC7

treatment provided by

Biodiversity Data Journal by Pensoft

scientific name

Notaulax punctulata Tovar-Hernandez , Garcia-Garza & de Leon-Gonzalez
status

sp. n.

Notaulax punctulata Tovar-Hernandez, Garcia-Garza & de Leon-Gonzalez   sp. n.

Materials

Type status: Holotype. Occurrence: catalogNumber: UANL 8142; recordedBy: Tulio Fabio Villalobos-Guerrero; sex: Female; lifeStage: Adult; reproductiveCondition: Ripe; Taxon: phylum: Annelida; class: Polychaeta; order: Sabellida Levinsen, 1883; family: Sabellidae Latreille, 1825; genus: Notaulax Tauber, 1879; Location: higherGeographyID: Pacific Ocean; higherGeography: Tropical Eastern Pacific; continent: America; country: México; countryCode: MX; stateProvince: Guerrero; municipality: Acapulco de Juárez; locality: Acapulco, Playa Hornitos ; maximumDepthInMeters: 3 m; verbatimLatitude: 16°51 ’26.41” N; verbatimLongitude: 99°53 ’20.70” W; Identification: identifiedBy: María Ana Tovar-Hernández; Event: samplingProtocol: By hand; eventDate: November 9, 2015; year: 2015; month: 11; day: 9; habitat: Sclerozoan of oyster attached to dock; Record Level: language: Spanish; institutionID: Universidad Autónoma de Nuevo León; collectionID: Colección Poliquetológica, Universidad Autónoma de Nuevo León; institutionCode: UANL; collectionCode: UANL, NL INV 0002-05-09 GoogleMaps   Type status: Paratype. Occurrence: catalogNumber: UANL 8143; recordedBy: Tulio Fabio Villalobos-Guerrero; individualCount: 1; sex: Male; lifeStage: Adult; reproductiveCondition: Ripe; Taxon: phylum: Annelida; class: Polychaeta; order: Sabellida; family: Sabellidae; genus: Notaulax; Location: higherGeographyID: Pacific Ocean; higherGeography: Tropical Eastern Pacific; continent: America; country: México; countryCode: MX; stateProvince: Guerrero; municipality: Acapulco de Juárez; locality: Acapulco, Playa Hornitos ; maximumDepthInMeters: 3 m; verbatimLatitude: 16°51 ’26.41” N; verbatimLongitude: 99°53 ’20.70” W; Identification: identifiedBy: María Ana Tovar-Hernández; Event: samplingProtocol: By hand; eventDate: November 9, 2015; year: 2015; month: 11; day: 9; habitat: Sclerozoan of oyster attached to dock; Record Level: language: Spanish; institutionID: Universidad Autónoma de Nuevo León; collectionID: Colección Poliquetológica, Universidad Autónoma de Nuevo León; institutionCode: UANL; collectionCode: UANL, NL INV 0002-05-09 GoogleMaps  

Description

Figures 10O-S, 16-18

Body shape and trunk size. Specimens flattened dorso-ventrally along the thorax, with pyriform abdomen in transversal section. Body length 15.4 mm (+13,2 mm), 1.5 mm (1.8 mm width).

Radiolar crown. Length 4.9 mm with 11 pairs of radioles. Radiolar lobes fused dorsally. Base of radiolar crown (basal lamina) short, as long as the length of three segments in lateral view, with dorsal and ventral flanges reduced (Fig. 16 View Figure 16 A-B and D). Radioles fused by a palmate membrane, about 1/2 of radiole length. Immediately above the membrane, there is a group of 24-26 black ocelli in a single row on both outer sides of the radioles, each band as long as the space of 13 pinnules (Fig. 17 View Figure 17 A and C-D). Radiolar flanges broad (Fig. 17 View Figure 17 A). Radiolar tips flattened, with broad flanges and long digitiform tips, occupying the space of 12 pinnules (Fig. 17 View Figure 17 E). Longest pinnules located at three quarters of the radiolar crown length. Radioles not sectioned to count the number of skeletal cells (see remarks to genus level). Dorsal lips as long as 1/4 of the radiolar crown length, erect, with mid-rib. Ventral lips short, ear-shaped. Dorsal and ventral pinnular appendages absent.

Peristomium.   Anterior peristomial ring not exposed beyond collar (not visible). Posterior peristomial ring collar: dorsal collar margins fused to faecal groove (Fig. 16 View Figure 16 A). Lateral collar margins entire (Fig. 16 View Figure 16 D). Ventral collar margins incised forming rounded lappets (Fig. 16 View Figure 16 B, E). Ventral sacs and parallel lamellae absent.

Thorax. Chaetiger 1: with straight oblique rows of spine-like notochaetae (Fig. 16 View Figure 16 A). Spine-like chaetae from collar short, stouter, straight with blades sharply curved at the end (Fig. 10 View Figure 10 O and Fig. 18 View Figure 18 A). Ventral shield rectangular. Chaetigers 2-8: notopodia with superior group of short, spine-like chaetae and inferior groups of paleate chaetae without mucros (Fig. 10 View Figure 10 P and Fig. 18 View Figure 18 B). Neurochaetae avicular uncini, with handles as long as two times the length of crest, developed breast and several rows of minute, similarly-sized teeth occupying half of the crest (Fig. 10 View Figure 10 Q, andFig. 18 View Figure 18 C); neuropodial companion chaetae with rounded denticulate head and long, gently tapering asymmetrical membrane. Ventral shields broad, trapezoidal, laterally indented by neuropodial tori.

Abdomen. Segments 142 (83 abdominal segments). Interramal eyespots present (Fig. 16 View Figure 16 F-G and Fig. 17 View Figure 17 B). Abdominal ventral shields brown, rectangular, divided longitudinally by faecal groove. Anterior abdominal segments with paleate notochaetae, nearly rounded with mucros as long as palea width (Fig. 10 View Figure 10 S and Fig. 18 View Figure 18 B) and elongate, narrowly-hooded chaetae. Avicular abdominal uncini similar to thoracic ones, but handles shorter (as long as the crest length) and dentition covering 3/4 of the crest (Fig. 10 View Figure 10 R and Fig. 18 View Figure 18 F). Posterior abdominal segments with oval paleae with a mucro longer than three times the palea width and modified, elongate narrowly-hooded chaetae. Pygidium with two rounded black eyes.

Colour in live specimens: Unknown.

Colour in preserved specimens: Body pale with black interramal eyespots (Fig. 16 View Figure 16 G, andFig. 17 View Figure 17 B); collar and some areas of thorax purple (Fig. 16 View Figure 16 C).

Tubes: Organic, horny, translucent tubes.

Diagnosis

Ventral margin of collar incised, forming rounded lappets. Long bands or radiolar ocelli (each band as long as the space of 13 pinnules), ocelli distributed in single rows of 24 ocelli each, bands located at the middle of the radiolar crown length. Interramal eyespots on abdominal segments.

Etymology

The specific epithet punctulata   is the feminine of the Latin word punctulatus, meaning 'having small spots or punctures' or 'punctulate' and refers to the presence of abdominal interramal eyespots of the species.

Biology

Holotype female with fully-developed oocytes in abdomen. Paratype male with sperm in abdomen, spermatozoa with spherical nucleus and rounded cap-like acrosome (Fig. 18 View Figure 18 F).

Taxon discussion

Abdominal interramal eyespots have been only reported in Notaulax tilosaula   (Schmarda, 1861) ( Schmarda 1861) by Tovar-Hernández et al. (2017). Notaulax punctulata   sp. n. differs from N. tilosaula   by the following features: the palmate membrane extends until a half of the radiolar crown length in N. punctulata   sp. n. (1/4 of the radiolar crown length in N. tilosaula   ); radiolar tips are very long, occupying space of 10-12 pinnules width in N. punctulata   sp. n. (short tips in N. tilosaula   , occupying space of three pinnules width; band of ocelli in N. punctulata   sp. n. occupying space of 13 pinnules (25 pinnules in N. tilosaula   ); ventral lappets rounded in N. punctulata   sp. n. (triangular in N. tilosaula   ); lateral collar margin level in N. punctulata   sp. n. (V-shaped margin in N. tilosaula   ) and mucro of posterior abdominal paleae as long as three times the width of paleae (mucro as long as five times the width of paleae in N. tilosaula   ).

Amongst the species of Notaulax   from the Mexican Pacific, N. punctulata   sp. n. is unique by the presence of interramal eyespots on the abdominal segments (Table 2). Notaulax californica   and N. punctulata   sp. n. have radiolar ocelli distributed in single rows, but in the former, there are a minor number (5-6), whereas in the second, there may be up to 24 ocelli per row. Notaulax nigroincrustata   sp. n. have ocelli distributed in oval groups of 26-30 ocelli each.

Kingdom

Animalia

Phylum

Annelida

Class

Polychaeta

Order

Sabellida

Family

Sabellidae

Genus

Notaulax