NEW STARFISHES FROM THE PACIFIC COAST 121 



A. regalis Gray, a short-rayed form, also has but one actinal 

 adambulacral spine, scarcely longer than longest furrow spine. 

 A. vcrrilli de Loriol differs from ornatissimus in having a dif- 

 ferent inferomarginal and adambulacral armature. The supero- 

 marginal plates of verrilli carry small tubercles forming a single 

 longitudinal series. A. rubidus de Loriol is allied to articulatus 

 (Say), having broad supermarginal plates, a smaller disk than 

 ornatissimus^ and with rays broader at tip, paxillae with shorter 

 spinelets, and adambulacral plates with much smaller spinelets 

 — 3 small ones in actinal ser 



Family LUIDIID^ (Sladen) Verrill. 

 Genus Luidia Forbes. 

 Luidia Forbes, Mem. Wern. Soc, vni, 1839, I2 3* 



There are three species of Luidia occurring off the California 

 coast. In literature two names occur — Luidia foliolata Grube ' 

 and L. catifornica Perrier. 2 According to Ludwig the latter 

 name is a nomen nudum ; hence it need not further be con- 

 sidered. Ludwig 3 further states that Grube gives California 

 as the locality of foliolata. I have not been able to consult 

 Grube's description, but from the fact that Sladen thinks folio- 

 lata may not be distinct from brcvispina, I have considered 

 that the name must apply (if not actually to brcvisfina) to a 

 common, shallow water Luidia (Southern Alaska to San Diego, 

 and Mazatlan?) which is closely related to brevisfiina. This- 

 form I have compared with specimens of L. brcvispina, and it 

 is perfectly distinct. If the name foliolata does not apply to it, 

 it is a new form. 



The other 2 species are evidently new and the more evident 

 characters of the 3 forms are contrasted in the following 

 synopsis. 



1 L'eber einige neue Seesterne des Breslauer zoologischen Museums < 43 

 Jahresber. d. Schlesisch. Gesellsch. f. vaterland. Kultur, Breslau, 1S66, 59. 

 {Fide Ludwig.) 



2 Etude sur la repartition geographiques des Asterides. < Xouv. Archiv 

 Mus. Hist. Nat. Paris, II ser. I, 1S7S, $■;, 91. (Fide Ludwig.) 



3 Mem. Mus. Corhp. Zool., XXXII, 1905, So, footnote. 



