1021.] 



A. Robertson : Report on Bryozoa. 



35 



73. Relepora piinctiligera , Ort- 



mann. 



74. Reteporella minor, Ortmann. 



75. Haswellia australicnsis, Has- 



well. 



76. Adeonella japonica, Ort- 



mann. 

 jj. ,, platalea, Busk. 



78. ,. inargiiiata, sp. nov. 



79. Lagenipora costazii, Aud. 



80. ,, tuberculata, MacG. 

 8r. Holoporella aperta, Hincks. 



82. ,, trideuticu/afa, Busk. 



83. ,, maniniillata, Busk. 



84 Ciipularia canay/ewsjs, Busk. 



85. Crista sp ? 



86. Filisparsa ttibulosa, Busk. 



87. Idmonea atlantica, E. Forbes. 



88. ,, gracillima, Busk. 



8g. Entalophora raripora, d'Orb. 



90. Lichenopora radiata, Aud. 



91. Domopora trimcataj anieson. 



92. Alcvonidium mytili, Dalyell. 



93. Amathia seiniconvoluta, 



Waters. 



94. Zoobotryon pellucid tis, Eh- 



renberg. 



95. Pedicellina cernna, Pallas. 



Abbreviations used in text-figures. 



av. avicularium. 

 av.ar. avicularian area. 

 av.zoe. avicularian zooecium. 

 b.j. break joint. 

 ba.sp. basal spine. 



chi.y. chitinous rim. 



de.inus. degenerating muscle. 



de.poly. degenerating polypide. 



emb. embryo. 



icr.zoe. fertile zocecium. 



/. lobe, 



lat.sp. lateral spine. 



m/fs. muscle. 



nu.zoe. nutritive zocecium. 



oe. ocecium. 



oe.zoe. ooecial zocecium. 



op. operculum. 

 op.r. opercular rim. 

 op.sp. opercular spine. 

 p. pore. 



ped.av. pedunculated aviculari- 

 um. 

 pi. plate. 

 pr. process. 



pri.tno. primary mouth. 

 re.ele. reproductive elements. 

 ses.av. sessile avicularium. 

 sh. sheath. 



sp.av. spatirlate avicularium. 

 &t. stomach. 

 t.ba. tubular base. 

 urn. umbo. 

 zoe. zooecium. 



Cheilostomata. 

 I. Aetea truncata, L,andsborough. 



Aetea truncata, Robertson, 1905, vol. 2, no. 5, p. 246, pi. iv, figs. 5, 6. 



A mere fragment growing on a piece of shell together with 

 other Bryozoa. Obtained on the Pearl Banks, Ceylon, depth 

 unknown. This species seems to be a northern form which has 

 strayed south. It is present as a .shore form on the coast of 

 Alaska, has been obtained on a holdfast at La JoUa, California, at 

 a depth of two fathoms, and is reported from Zanzibar at eight 

 fathoms. 



2. Synnotum avicularc, Pieper. 



Synnotiim aviculare, Hincks, 1886, ser. 5, vol. 17, p. 257. 

 Synnotum aviculare. Robertson, 1905, vol. 2, no. 5, p. 286, pi. xiv, figs. 

 84. 85. 



