Pseudobranchiomma punctata ( Treadwell, 1906 )

Bastida-Zavala, J. Rolando, Buelna, Alondra Sofía Rodríguez, León-González, Jesús Angel De, Camacho-Cruz, Karla Andrea & Carmona, Isabel, 2016, New records of sabellids and serpulids (Polychaeta: Sabellidae, Serpulidae) from the Tropical Eastern Pacific, Zootaxa 4184 (3), pp. 401-457 : 408

Pseudobranchiomma punctata ( Treadwell, 1906)

( Figures 2 , 10 E–F)

Laonome punctata Treadwell, 1906: 1179 , Figs 76–77. Type locality: Puata Bay and Waialea, Oahu , Hawaii. Pseudobranchiomma punctata . — Nogueira & Knight-Jones 2002: 1663 –1665, Fig. 1 (redescription); Knight-Jones & Mackie 2003: 2282, 2296 (new combination, new record from New Caledonia) .

Material examined. 106 specimens.

Baja California Sur: UANL 7859, 23 spec. ( Marina Palmira, La Paz , 24°11’05.3”N, 110°18’12.8”W, April 3, 2011, coll. JAL) ; UANL 7860, 11 spec. ( Marina de La Paz , sta. 2: 24°09’17.6”N, 110°19’32.2”W, April 3, 2011, coll. JAL) ; UANL 7861, 36 spec. ( Marina Puerto Los Cabos , San José del Cabo, sta. 1: 23°03’42.4”N, 109°40’27.8”W, April 4, 2011, coll. JAL) ; UANL 7904, 36 spec. (same, sta. 2, 23°03’42.2”N, 109°40’29.5”W, April 4, 2011, coll. JAL).

Habitat. Intertidal to subtidal. In coral reefs ( Nogueira & Knight-Jones 2002) and on anthropogenic substrates in marinas (from La Paz and San José del Cabo, Baja California Sur). Fouling species.

Distribution. Hawaii and southern part of Baja California Peninsula (only in marinas and ports).

Remarks. In their redescription of Pseudobranchiomma punctata Nogueira & Knight-Jones (2002) mentioned 5–9 thoracic segments and colorless radioles, without serration or compound eyes; however, the specimens revised here have 4–14 thoracic segments, and dark-brown radioles with 3–4 eyespots on each radiole.

Pseudobranchiomma punctata is a new record for Baja California Sur . Since all records were from marinas, it is possibly an exotic species introduced by yachts directly from Hawaii . Alternatively, the species came from California ; however, to date no records from California have been published.

Figures

FIGURE 1. Study area. The Tropical Eastern Pacific, Southern California and Hawaii, with main geographical names mentioned in text.

FIGURE 2. Distribution of the sabellids Branchiomma bairdi, Megalomma carunculata, Parasabella pallida and Pseudobranchiomma punctata in the Tropical Eastern Pacific, Southern California and Hawaii.

FIGURE 10. Sabellids and serpulids in the Mexican Pacific. A. Branchiomma bairdi, anterior part; B – C. Megalomma carunculata, anterior part and caruncle; D. Parasabella pallida, anterior part; E – F. Pseudobranchiomma punctata, body and detail of abdominal section; G. Ficopomatus uschakovi, anterior part; H – I. Crucigera websteri, opercula, lateral and aboral side (colors in life and preserved).