Hydrozoans

Hybocodon prolifer.

Millepora alcicornis Linn. Variety with Flabellate Fronds. Height of Specimen, 28.5 cm..

Obelia dichotoma (Linn).

Lafoea gracillima.

Cordylophora lacustris Allman.

Figure 5.Color figures of skeleton of various Alaskan stylasterids: A Errinopora fisheri B, G–I Errinopora nanneca C, F Errinopora undulata, D Errinopora disticha E Errinopora zarhyncha. A holotype, USNM 1123526 B holotype, USNM 42875 C holotype, USNM 112327 D holotype, USNM 1123524 E holotype, USNM 42874 F lateral view of a large paratype, USNM 1123528 G lamellate colony with digitate distal branches, USNM 1123462 H lamellate colony, USNM 44070 I intermediate form between lamellate and digitate, USNM 1123510.

Millepora sp. 1 is not the primary subject of the video clip; the primary subject is Dascyllus reticulatus (Reticulated damsel). South Pacific Ocean, Duration 111 seconds

Davenport, California, USA

Bougainvillia caroliensis (McCr.) (Juv.).

Sertularella tricuspidata (Alder).

Obelia geniculata (Linn.). A.Medusa.

Halecium articulosum Clark. A. Hydranth....

Millepora Alcicornis Linn. Digitiform Variety, Greatest Breadth, 35.5 cm..

Plumularia faicata.

Tiaropsis diademata Ag. A.Otocyst.....

Opercularella lacerata Hincks.

Figure 8.Holotype of Errinopora disticha, USNM 1123524: A–B distichoporine pore rows and female ampullae (A a stereo view) C gastropore and adjacent dactylopore spine with dactylostyle D–E coenosteal texture F–G dactylostyle H–I lateral view of gastrostyle J detail of gastrostyle spines.

Coral Sea, Duration 15 seconds

Davenport, California, USA

Bougainvillia carolinensis (McCr..

Laodicea calcarata.

Obelia geniculata (Linn.).