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



Family Siphonogorgid^. 

 Siphonogorgia sphndens. 



Order PENNATULACEA. 



Family Pennatulid^. 

 Ptilosarcus brevicauUs.* 

 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 Viegularid^. 

 Virgularia, sp.? 



Balticina finmarchica, B. pacifica, B. calif ornica. 

 Halipteris christii. 



Family Umbellulid^. 



Umbellula magniflora, U. carpenteri, U. eloisa* 



Family Kophobelemnonid^. 

 Kophobelemnonferrugineum, K. hispidum* 



Family Anthoptilid^. 



Family EchinoptilidjE. 

 Family Protoptilid^. 



Anthoptilum murrayi. 



Echinoptilum madntosM. 



Protoptilum orientale* 

 Stachyptilum macleari. 

 Trichoptilum spinosum* 

 Eelicoptilum * rigidum* 



Order GORGONACEA. 



Suborder HOLAXONIA. 



Family CHRYSOGORGiDiE. 



Lepidogorgia petersi. 



Chrysogorgia lata, C. flexilis, C. agassizii, C. dichotoma. 



Family Primnoid^, 



Calyptrophora ijimxii, C. japonica, C. kerberti. 



Stachyodes megalepis. 



Caligorgia flabellum, C. ventrilabrum, C. aspera. 



Plumarella spinosa, P.flabellata, P. carinata, P. spicata,* P. adhxrans* 



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



Primnodendron* superbum* 



Family Muriceid^. 



Acanthogorgia striata, A.fusca,* A. paradoxa* 



Anthomuricea aberrans* ' 



Muriceides cylindrica,* M. nigra* 



Muricella reticulata,* M. abnormalis.* 



Thesea placoderma. 



Ads squamata, A. symijera.* 



