Background The sabellid genera Anamobaea Krøyer, 1856 and Notaulax Tauber, 1879 are two of the most attractive polychaete worms in coral reefs. Anamobaea is represented by two Caribbean species and Notaulax with 24 species from around the world, six of them previously known to tropical America. During examination of fouling biota and sclerozoans from Mexico, Anamobaea orstedii Krøyer, 1856 was found in coral reefs from the southern Gulf of Mexico and three species of Notaulax were identified to the Mexican Pacific, two of them being new species to science. New information Anamobaea orstedii Krøyer, 1856 is first reported as sclerozoan of dead coral from the southern Gulf of Mexico. An amendment to the generic diagnosis of Anamobaea is provided, based on the presence of a higher number of skeletal cells than previously recorded; height, shape and exposition of the anterior peristomial ring; the non-fusion of dorsal collar margins to faecal groove; shape of collar chaetiger and abdominal chaetae and distribution and shape of radiolar ocelli. Notaulax californica (Treadwell, 1906) is reported as fouling in buoys and docks from the Gulf of California. Two new species of Notaulax are described: the former was found in hull and dock fouling from La Paz (Gulf of California) and the second one as sclerozoan of oysters from a dock fouling in Acapulco (south Mexican Pacific). In addition, reproductive features are described for the first time for A. orstedii which is a simultaneous hermaphrodite with female and males gametes found within the same segments of abdominal region. Oocytes develop synchronously and sperm morphology (spherical nucleus and rounded acrosome, four spherical mitochondria and a long free flagellum) suggest an adaptation to broadcast spawning and external fertilisation. Species of Notaulax here examined were gonochoric, with gametes distributed in abdominal segments.

中文翻译：

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来自墨西哥的硬化动物和结垢沙贝利虫（Annelida：Sabellidae）以及两个新物种的建立

背景 sabellid 属 Anamobaea Krøyer, 1856 和 Notaulax Tauber, 1879 是珊瑚礁中最有吸引力的两种多毛类蠕虫。Anamobaea 以两种加勒比物种和 Notaulax 为代表，拥有来自世界各地的 24 种物种，其中 6 种以前为热带美洲所知。在检查来自墨西哥的污染生物群和硬化动物时，1856 年在墨西哥湾南部的珊瑚礁中发现了 Anamobaea orstedii Krøyer，并且在墨西哥太平洋发现了三种 Notaulax，其中两种是科学的新物种。新信息 Anamobaea orstedii Krøyer，1856 年首次被报道为墨西哥湾南部死珊瑚的硬化动物。基于存在比以前记录的更多数量的骨骼细胞，对 Anamobaea 的一般诊断进行了修订；高度，前口周环的形状和暴露；背领边缘与粪便沟不融合；领毛毛虫和腹毛毛虫的形状和放射单眼的分布和形状。据报道，Notaulax californica (Treadwell, 1906) 是加利福尼亚湾浮标和码头的污垢。描述了两种新的 Notaulax 物种：前者是在拉巴斯（加利福尼亚湾）的船体和码头污垢中发现的，第二种是来自阿卡普尔科（南墨西哥太平洋）码头污垢的牡蛎的硬化体。此外，首次描述了 A. orstedii 的生殖特征，它是一种同时雌雄同体的雌雄配子，在腹部区域的同一节段内发现了雌性和雄性配子。卵母细胞与精子形态同步发育（球形核和圆形顶体，四个球形线粒体和一个长的游离鞭毛）表明适应广播产卵和外部受精。这里检查的 Notaulax 物种是生殖器，配子分布在腹部。