New records of sabellids and serpulids (Polychaeta: Sabellidae, Serpulidae) from the Tropical Eastern Pacific Author Bastida-Zavala, J. Rolando Author Buelna, Alondra Sofía Rodríguez Author León-González, Jesús Angel De Author Camacho-Cruz, Karla Andrea Author Carmona, Isabel text Zootaxa 2016 4184 3 401 457 journal article 10.11646/zootaxa.4184.3.1 4d1b5b33-2741-4f58-b920-d3c8f6abbbff 1175-5326 255062 3DD2861B-C3E9-474A-B442-A2BFEBB1AE9D Hydroides crucigera Mörch, 1863 ( Figures 3 , 11 C) Hydroides (Eucarphus) crucigera Mörch, 1863 : 378 , pl. 11, Fig. 8 . Type locality: Punta Arenas, Pacific side of Costa Rica, on Margaritifera barbata (now Pinctada Röding sp.), 26 m . Hydroides californicus Treadwell, 1929 : 12 (Baja California); Rioja 1941a : 161 –164 (La Aguada Beach, Acapulco, Guerrero, and Mazatlán, Sinaloa); Rioja 1941b : 733 (same); Salazar-Vallejo 1989b : 199 (Mexican coasts, checklist); Salazar-Vallejo & Londoño-Mesa 2004 : 54 (Tropical Eastern Pacific, checklist); Hernández-Alcántara et al . 2008 : 48 (mentioned only). Hydroides crucigera .— Monro 1933b : 1083 , Text-figure 26 ( Taboga Island , Panamá , on pier floats) ; Rioja 1944 : 409 –414 (synonymization of H. californicus recorded in the Mexican Pacific and duplicity of operculum) ; Rioja 1947a : 215 ( La Paz, Baja California Sur , and Topolobampo, Sinaloa ) ; Rioja 1958 : 250 –251 ( Verde Island and Santiaguillo Island , Veracruz ); Straughan 1969 : 232 –234 (Pearl Harbor, Kaneohe Bay , Coconut Island and Maili Point, Oahu, Hawaii , samples from 1936 to 1968 ); Shepherd 1972 : 5 ( La Paz Bay, Baja California Sur ; epifauna on Pinctada mazatlanica [ Hanley ]); Long 1974 : 28 ( Oahu , Hawaii , 9–36 m , with little coverage on test panels); Kudenov 1975 : 228 ( Station Beach , Puerto Peñasco , Sonora , bottom of basalt boulders); Bailey-Brock 1976 : 77 –78 ( Oahu Island , Hawaii , reef flats, epifauna of mobile substrata [mollusks and crustaceans], boat harbors, lagoons and reef slope); Kudenov 1980 : 122 (same as Kudenov 1975 ); Salazar-Vallejo & López-Muraira 1983 : 111 (Bocachibampo Bay, Sonora ; intertidal; epifauna of sea urchin Hesperocidaris asteriscus H.L. Clark ); Laverde-Castillo 1986 : 128 (Málaga Bay , Colombian Pacific ); Bailey-Brock 1987 : 420 ( Hawaii ); Laverde-Castillo 1988 : 91 ( Curichichi , Cabezón and Mayordomo Islands , Málaga Bay , Colombian Pacific , on dead coral and shells); Salazar-Vallejo 1989b : 199 ( Mexican coasts, checklist); Bastida-Zavala 1993 : 35 ( Caimancito Beach and Balandra Beach , Baja California Sur ); de León-González et al . 1993: 879 (Puerto Escondido Bay, Baja California Sur , epifauna on the oyster “ Spondylus princeps unicolor Sowerby ”; 30 m ); Bastida-Zavala 1995 : 24 ( Cabo Pulmo Reef, Baja California Sur , on coral; 4–17 m ); Gómez et al . 1997 : 1071 (Puerto Ángel Beach and La Entrega Beach , Oaxaca , rocks and coral); López-García et al . 1997 : 66 ( Coiba , Panamá , under rocks, on dead coral and the octocoral Telesto riisei [ Duchassaing & Michelotti ]); Dean 2004 : 165 (list of polychaetes from Costa Rica ). Hydroides crucigerus .— de León-González 1990: 336–337, Fig. 3 e–g ( Punta San Juanico , Baja California Sur ; 30 m ). Hydroides cruciger .—Bastida-Zavala & ten Hove 2003: 78–80, Figs 5 A–Q ( Baja California , Baja California Sur , Guerrero , Oaxaca , Panamá , Hawaii ; 0–8 m ) ; Salazar-Vallejo & Londoño-Mesa 2004 : 54 (Tropical Eastern Pacific, checklist); Bastida-Zavala 2008: 23, fig. 6E ( Hawaii, Guerrero and Oaxaca ; 0–4 m ) ; Bastida-Zavala 2009: 534, Fig. 2 A (identification key for Tropical America); ten Hove & Kupriyanova 2009: 53 (worldwide serpulid checklist); Tovar- Hernández et al . 2009b: 330–331, Figs 3 k, 6b-c, 7g-i (fouling in Mazatlán, Sinaloa ); Bastida-Zavala et al . 2013 : 349 ( Oaxaca , checklist); Villalobos-Guerrero et al . 2014: 107 ( Sinaloa , checklist). Material examined. 45 specimens. Sonora: UMAR-Poly 737, 2 spec. (Puerto Peñasco, June 15, 1981 , coll. SSV & JAL). Baja California : UMAR-Poly 738, 3 spec. ( La Gringa , Bahía de los Ángeles cobbles on sand, scarce corals and sponges, 29°N, 113°30’W , 2–3 m in low tide, August 13, 1989 , coll. HTH). Baja California Sur : UMAR-Poly 739, 3 spec. ( Punta San Juanico , January 28, 1988 , coll. JAL, don. UANL 0359 ); UMAR-Poly 740, 4 spec. (Concepción Bay , Requesón Beach , May 15, 1988 , coll. RBZ) ; UANL 7864 ( Puerto Escondido , scraping of pier, sta. 4: 25°48’52.9”N , 111°18’40.4”W , April 20, 2010 , coll. JAL) ; UANL 7867 (same, sta. 2: 25°48’53.1”N, 111°18’40.5”W, April 2, 2011 , coll. JAL); UANL 7865, 3 spec. ( Marina Cantamar, Pichilingue, sta. 1: 24°16’42.7”N, 110°19’50.4”W, April 22, 2010 , coll. JAL); UANL 7866, 2 spec. ( Marina Fonatur, La Paz , 24°07’29.7”N , 110°20’47.1”W , November 14. 2013 ); UMAR-Poly 741 ( La Paz Bay , Comitán Beach, October 18, 1989 , coll. RBZ). Gulf of California : UMAR-Poly 742, 2 spec. (M-Serp-1, IM(N)?, no more data, coll. GGG). Guerrero : UMAR-Poly 743 ( La Quebrada , Acapulco , on Muricanthus , May 25, 2000 , coll. AM) . Oaxaca , UMAR-Poly 744 ( Chacahua Lagoon , on rock, April 3, 2008 ) ; UMAR-POLY 745, 5 spec. ( Corralero Lagoon and Panteón Beach , March 22–23 and May 15, 2010 , coll. FAG, mixed samples); UMAR-Poly 746 ( Panteón Beach , Puerto Ángel , 10 m , November 23, 2005 , coll. GRC); UMAR-POLY 747 ( Puerto Ángel , June 15, 2010 , coll. JPQ & RRB); UMAR-POLY 748 ( Estacahuite Beach , Puerto Ángel , April 18, 2005 , coll. Yareth & SGM); UMAR- POLY 749 ( Marina Chahué, Huatulco , on rocks, May 22, 2000 , coll. RBZ); UMAR-POLY 750, 3 spec. (same, on mollusc, May 22, 2000 , coll. RBZ); UMAR-Poly 751, 4 spec. ( Salina Cruz , angler pier, main dock, sta. 4, 1 m , May 26, 2011 , coll. SGM et al .); UMAR-Poly 752 (same, hull of the shrimp boat “ Golfo Pérsico ”, 1 m , May 26, 2011 , coll. EVP); UMAR-POLY 753 (“sample 85”, Oaxaca , 0–6 m , September 15, 2004 ) . Panamá: UMAR-Poly 754, 3 spec. (Diablo Spinning Club, Balboa, June 5, 2002 , coll. SSV). Habitat. Intertidal to subtidal ( 36 m , Long 1974 ). On mollusks, rocks and on anthropogenic substrates in marinas and ports from Pichilingue, La Paz and Puerto Escondido, Baja California Sur, and Chahué and Salina Cruz , Oaxaca. Also on the oyster “ Spondylus princeps unicolor ” (de León-González et al . 1993 ) , on dead coral Pocillopora and in rock pools, with salinity range of 19–37 PSU (Bastida-Zavala 2008). Fouling species. Distribution. Tropical Eastern Pacific. From Gulf of California ( México ) to Málaga Bay ( Colombia ); also in Veracruz ( Rioja 1958: 251 ) and Hawaii (Bastida-Zavala & ten Hove 2003 ). Remarks. Hydroides crucigera was found both on natural and anthropogenic substrates. The species probably is exotic in Hawaii; Straughan (1969) recorded samples from 1936 to 1968 ; later, Long (1974) recorded the species from Oahu, collected from 1968 to 1972 , and Bailey-Brock (1976) recorded the species from several localities, from reef flats to reef slopes in Hawaii. It is a fouling species with potential to be introduced to other tropical regions by ships. Rioja (1958: 250–251) recorded Hydroides crucigera (as H. californicus ) from two reef islands of Veracruz, Gulf of Mexico; unfortunately his collection was lost. Nonato & Luna (1970: 99–100, Fig. 106) recorded a specimen as Hydroides californicus from Alagoas coast, Brazil , to 100 m depth; however, the specimen could not be synonymized with H. crucigera because their illustration represents an opercular funnel with 24 bluntly tipped radii, while H. crucigera has 30–50 radii with pointed tips ( Fig. 11 C). Also, the lateral spinules are represented as very small, almost triangular, while H. crucigera shows long lateral spinules ( Fig. 11 C). By the number of radii and general shape of the spines Nonato & Luna’s material is similar to Hydroides sp. 1 Bastida-Zavala & ten Hove (2002) , from the Caribbean, except for the number of lateral spinules, 2–4 pairs in Hydroides sp. 1 and only one pair in the specimen from Brazil .