Lithoglyptinae, Aurivillius, 1892

Kolbasov, Gregory A. & Newman, William A., 2005, Revision of the Lithoglyptidae sensu Tomlinson, 1969 and Lithoglyptes Aurivillius, 1892 (Cirripedia, Acrothoracica,), including a new species from Bermuda, Zootaxa 1013 (1), pp. 35-64 : 61-62

Key to the genera and species of Lithoglyptinae

(four pairs of terminal cirri plus caudal appendages).

1 Caudal appendages each of two segments plus a pedestal............................................ 2

­ Caudal appendages each of two segments but without a pedestal ..... 6 ( Armatoglyptes )

2 Opercular bars without well­developed posterior projections, operculum with short posterior lobes or rudiments thereof.......................................................3 ( Lithoglyptes )

­ Opercular bars with hooked posterior projections, operculum with long, articulated posterior setose lobes (auricles) .................................................. Auritoglyptes bicornis

3 Opercular bars armed with bifid teeth ............................................................. L. ivanovi

­ Opercular bars lacking bifid teeth, with simple teeth and/or small denticles ............... 4

4 Posterior lobes of operculum well developed ............................................................... 5

­ Posterior lobes of operculum rudimentary ...................................................... L. indicus

5 Proximal end of mantle attenuated, extending to point of initial attachment ................. .................................................................................................................. L. tectoscrobis

­ Proximal end of mantle not extending to initial point of attachment ............... L. viatrix

6 Opercular bars asymmetrical, one with a medial projection ................ A. scamborachis

­ Opercular bars symmetrical .......................................................................................... 7

7 Orificial knob with conspicuous teeth........................................................................... 8

­ Orificial knob without teeth, or absent.......................................................................... 9

8 Posterior projections of opercular bars straight, without long recurved hooks or spines ............................................................................................................................. A. mitis

­ Posterior projections recurved or straight, but when straight with long anterior, recurved spines .................................................................................................. A. habei

9 Posterior projections of opercular bars decurved in adults ........................................ 10

­ Posterior projections of opercular bars recurved anteriorly or straight in adults ....... 11

10 Posterior projections equal to or greater than the length of opercular bars .................... ................................................................................................................. A. balanodytes

­ Posterior projections less than the length of opercular bars ......................... A. cornutus

11 Opercular bars with upturned anterior ends .............................. A. wilsoni (Koror form)

­ Opercular bars without upturned anterior ends .......................................................... 12

12 Opercular bars each with a small elevation at 1/3 of length from anterior end ............. ........................................................................................................................ A. thomasi

­ Opercular bars straight, without such an elevation ..................................................... 13

13 Posterior projections of opercular bars straight, without curved spines near tip ....... 14

­ Posterior projections of opercular bars decurved, usually with 1–2 curved spines near tip (often broken off in adults) ........................................................................... A. stirni

14 Posterior projections of opercular bars with several longitudinal rows of curved teeth. .................................................................................................................. A. echinoideus

­ Posterior projections of opercular bars without longitudinal rows of curved teeth ....... ......................................................................................................................... A. egorovi