Revision of the Lithoglyptidae sensu Tomlinson, 1969 and Lithoglyptes Aurivillius, 1892 (Cirripedia, Acrothoracica,), including a new species from Bermuda Author Kolbasov, Gregory A. Department of Invertebrate Zoology (White Sea Biological Station), Biological Faculty, Moscow State University, Moscow 119899, Russia, e-mail: kolbasov @ soil. msu. ru Marine Biological Research Division, Scripps Institution of Oceanography, La Jolla, CA 92093 - 0202, USA, e-mail: wnewman @ ucsd. edu Author Newman, William A. text Zootaxa 2005 2005-06-30 1013 1 35 64 https://biotaxa.org/Zootaxa/article/view/zootaxa.1013.1.3 journal article 10.11646/zootaxa.1013.1.3 1175­5334 5049212 09072535-2701-4A27-AA94-0159EBE871E9 Auritoglyptes gen. n. ( Figs. 3 , 4 ) Lithoglyptes Aurivillius, 1892:133 , in part. Chytraea Utinomi, 1950c:458 , nom. nud. (does not satisfy the requirements of ICZN Articles 13.1.1 and 13.3, and hence Chytraeidae Utinomi, 1950c:457 also nom. nud. ). Diagnosis: Lithoglyptinae having two­segmented caudal appendages plus pedestals, an operculum with a pair of long, articulated, posterior, setose, ear­like processes, or “auricles” ( Fig. 3A ), opercular bars with well developed, anteriorly hooked (decurved) opercular projections, and a mantle without an orificial knob or lateral bars. Etymology: from the Latin auritus – eared, in reference to the pair of posterior processes (“auricles”) of the operculum, and the Greek glyptes – carver, in reference to its affinities with the rock carver, Lithoglyptes . A monotypic genus represented by Auritoglyptes bicornis ( Aurivillius, 1892 ) the type , morphologically although not necessarily genetically a senior synonym of L. spinatus Tomlinson & Newman, 1960 (cf. Newman & Tomlinson 1974 ). FIGURE 3 . Auritoglyptes gen. nov. : A. bicornis ( Aurivillius, 1892 ) . A – viewed from right side; B – mandible; C – mandibular palp; D – maxillule; E – caudal appendage; F – dwarf male. (A, E, F – from Kolbasov, 2000e ). Abbreviations: ad – attachment disk; as – apertural slit; cc – comb collar; lp – lateral projection (wing); obp – opercular bar, posterior projection; oka – orificial knob area; sp – long, articulated posterior setose process (“auricle”); st – stalk. Scale bars in µm. FIGURE 4. Auritoglyptes gen. nov. : A. bicornis ( Aurivillius, 1892 ) . A, B – posterior and anterior portions of operculum respectively; C – surface of an auricle; D – opercular papilla; E – massive multifid scales; F – surface of orificial knob area; G – cuticle of attachment disk; H – flexible cuticular extensions of attachment disk (G) enlarged; I – dwarf male, apertural slit; J – dwarf male, base of stalk; K – dwarf male, rows of fringes or denticles on the middle part of body (all photos from Kolbasov, 2000e ). Abbreviations: as – apertural slit; cc – comb collar; ms – massive multifid scales; obp – opercular bar, posterior projection; op – opercular papillae; sp – auricle; spp –papillae of an auricle; st – stalk. Scale bars in µm. Description: The opercular bars are armed with long setae and bifid and simple teeth, and a pair of strong, anteriorly hooked, posterior projections ( Figs. 3 A ; 4 A ). A pair of long, articulated, setose processes (“auricles”) inserted posterior to the opercular bars are diagnostic for the genus. Well­developed apertural (opercular) papillae are located beneath the opercular bars in conspicuous pits, between the rows of prominent multifid scales, ( Fig. 4 B, D ), and on the surface of the auricles ( Fig. 4 C ). Typical prominent multifid scales, with scattered small setae coming up between them, cover the lateral faces of the operculum ( Fig. 4 E ). Lateral bars are absent. The orificial knob area lacks teeth but bears setae and dense multifid scales ( Figs. 3 A ; 4 F ). The oval or teardrop shaped attachment disk has indistinct growth lines and its cuticle is covered with dense, flexible extensions united into groups with oval outlines ( Fig. 4 G, H ). The caudal appendages consist, as in Lithoglyptes s.s. , of two segments supported by a pedestal, although the distal segment, with four plumose setae, is shorter than the proximal one ( Fig. 3 E ). The mantle of the dwarf males ( Fig. 3 F ) has well­developed, wing­like lateral body projections. The apertural slit, situated on the elongated end of mantle, is without teeth, setae or denticles ( Fig. 4 I ). There is a long, thin stalk between the mantle and antennules ( Figs. 3 F ; 4 J ). The cuticle of the body is covered by small, sharp and dense extensions characteristic for all lithoglyptids ( Fig. 4 K ). Distribution: Almost all tropical and subtropical waters: Red Sea, Aden, Maldives , Thailand , Java, Vietnam , New Guinea , Japan , Great Barrier Reef (Heron Island) Australia , Marshall Islands , Line Islands, Caribbean and Bermuda (re habitat and associates, cf. A. thomasi sp. nov. herein). Depth: from subtidal zone to 10 m . Hosts. On Acropora palmata , Acropora studeri , Dendrophylla axifuga and some undetermined corals. Bivalve molluscs ­ Barbatia decussata , Pinctada margaritifera , Pteria avicula , Tridacna maxima ; and gastropods ­ Drupa ricinus , Morula cavernosa , Turbo argirostoma . Also in skeletons of dead invertebrates and limestone.