NO. 1923. DESCRIPTIONS OF PACIFIC ALCYON ARIA— NUTTING. 3 



Family Siphonogorgid^. 

 Siphonogorgia splendens. 



Order PENNATULACEA. 



Family Pennatulid^. 

 Ptilosarcus brevicaulis* 

 Pennatula aculeata, P. sulcata, P. murrayi, P. pendula, P. naresi, P. longistyla* P. 



rubescens* P. brevipenna* P. inermis* 

 Pteroides sagamiense. 

 Halisceptrum gustavianum, H. cystiferum, H. album* 



Family Virgularid.*:. 



Virgularia, ep.? 



Balticina finmarckica, B. pacifica, B. californica. 



Halipteris christii. 



Family Umbellulid.*!. 



Umbellula magniflora, U. carpenteri, U. eloisa* 



Family Kophobelemnonid.*;. 



Kophobelemnonferrugineum, K. hispidum* 



Family Anthoptilid^. 



Family Echinoptilid.*;. 

 Family Protoptilid^. 



Anthoptilum murrayi. 



Echinoptilum macintoshi. 



Proloptilum orientate.* 

 Stachyptilum viacleari. 

 Trichoptilum spinosum.* 

 Helicoptilum* rigidum.* 



Order GORGONACEA. 



Suborder HOLAXONIA. 



Family CHRYSOGORoiDiE. 

 Lepidogorgia petersi. 

 Chrysogorgia lata, C. fiexilis, C. agassizii, C. dichotoma. 



Family Primnoid^. 



Calyptrophora ijimai, C. japonica, C. kerberti. 



Stachyodes megalepis. 



Caligorgia fiabellum, C. ventrilabrum, C. aspera. 



Plumarella spinosa, P . jlabellata, P. carinata, P. spicata,* P. adhserans.* 



Thouarella hilgendorfi, T. recta,* T. typica, T. striata, T. alternata.* 



Primnodendron* superbum.* 



Family Muriceid.*;. 



Acanthogorgia striata, A.fv^ca,* A. paradoxa.* 



Anthomuricea aberrans.* 



Muriceides cylindrica,* M. nigra* 



Muricella reticulata* M. abnormalis.* 



Thesea placoderma. 



Ads squamata, A. spini/era.* 



