330 Verrillj Notes on Radiata, 



0. sp. nov. (see page 270), Panama ! 



Opkiolepis variegata Ltltk., La Union ! Realejo. Panama! 



Ophiozona Pacifica Lym., Punta Arenas, Panama ! 



Ophiocoma cethiops Ltitk., Cape St. Lucas to Panama! 



0. Alexandri Lyra., Cape St. Lucas to Panama ! 



Ophionereis annulata Lym., Cape St. Lucas to Panama! 



Ophiocnida hispida Lym., Panama ! 



Ophiostigma tenue Ltitk., Realejo. 



Amphiura geminata Liltk., Panama ! 



A. violacea Ltltk., Realejo. ? Panama ! 



A. Puntarence Ltltk., Punta Arenas. Panama ! 



A. microdiscus Liitk., Punta Arenas. 



A. Orstedii Ltitk., Punta Arenas. 



Ophiophragmus marginatus Lym., Realejo. 



Hemipholis gracilis Verrill, Panama ! 



Ophiactis virescens Ltitk., Punta Arenas. Panama! 



0. simplex Ltitk., Nicaragua. Panama ! 



(?) 0. Orstedii Ltitk., Punta Arenas. 



0. arenosa Ltitk., Punta Arenas. Realejo. ? Panama! 



Ophiothrix spiculata LeC, Cape St. Lucas to Zorritos, Peru ! 



Ophiothela mirabilis Verrill, Panama ! 



Ophiomyxa sp., Punta Arenas (Ltitken). 



ASTERIOIDBA. 



Luidia tessellata Ltitk., Acajutla to Panama! 



(?) Petalaster Colmnbice Gray, San Bias. 



Astropecten fragilis Verrill, Panama and Zorritos! 



A. regalis Gray, San Salvador! Panama! San Bias. 



A. Orstedii Ltilk.,* Cape St. Lucas to Panama! 



Patiria obtusa Gray, Panama ! 



Asteriscus modestus Verrill, Panama ! 



Gymnasteria spinosa Gray, Panama. 



G. inermis Gray, Panama. 



Nidorellia armata Gruy, Guayamas to Zorritos ! 



Greasier occidentalis Verrill, Cape St. Lucas and Panama! 



LincJcia unifascialis Gray, Cape St. Lucas to Zorritos ! 



Ophidiaster pyramidatus Gray, same range as last! 



Mithrodia Bradleyi Verrill, Panama! 



* A typical specimen of this species received from Dr. Liitken, while agreeing in 

 most characters with those described in the preceding article (page 274), diflfers in hav- 

 ing much smaller and shorter spines both above and below, the inner row on the upper 

 marginal plates not reaching beyond the seventh or eighth plate, and in having the ter- 

 minal papiUse of the paxillee considerably finer, while the paxillas are also smaller and 

 shorter. This specimen being somewhat smaller (greater radii 2-15 inches), these differ- 

 ences may be due to age. 



