594 Verrill, JVotes on RacUata. 



zones, and have been obtained upon the shores at low-water, or by 

 the aid of pearl-divers at depths less than eight fathoms. 



In the list I have prefixed letters to indicate the relations of this to 

 the other tropical faunae. Those species indicated by c are represen- 

 ted by closely allies species in the Caribbean fauna ; those designated 

 by M are represented in the same way in the Mediterranean ; those 

 with A have corresponding species on the west coast of Africa; those 

 with I have representative species in the Indo-Pacific fauna. 



The species which I have personally examined are designated by a 

 mark of exclamation (!). 



Opiiiukoidea. 



c-M i-AHrophyton Panamense Verrill ! La Paz to Zorritos. 



c-M- Ophiura .Panamensis Lyman ! Southward to Panama. 



o- - — 0. teres Lyman ! S. to Panama. 



c- - -I- Ophiolepis variegata 'LutV^n. Altata. S. to Panama. 



c-Ji- -\-Ophiocoma mthiops Liitken! S. to Panama. 



c- - -i-O. Alexandri Lyman ! S. to Panjima. 



c-M- -i—Ophiactls viresceits Liitken ! S. to Panama. 



c- - -I- Ophioiiereis Xantusii Lyman. Cape St. Lucas. 



c- - -I- 0. annulatii Lyman ! S. to Panama. 



c-M- -i-Ophioglypha, sp. Altata (t. Liitken). 



c-M- -I- Ophiothrix spi'culata LeC. ! S, to Zorritos. 



c-M- -1-0. diDiiosa Lyman. Cape St. Lucas, San Diego, Guaymas. 



- - -I- Ophiothela uiirahiUs Verrill ! La Paz to Panama. 



ASTERIOIDEA. 



C-M- A-i- Astropecten Orstedii Liitken ! S. to Panama. 

 c-M- x-i-Luidia brevisphia Ltk. Mazatlan. 



- - -I- Gi/mnasteria spinosa Gray ! La Paz. 



Amphiaster insignia Verrill ! La Paz. 



Nidorellia armata Gray ! Guaymas and La Paz to Zorritos. 

 c- -A -I- Oreaster occldentalis Verrill ! La Paz to Panama. 



i-Acanthaster Ellisii Verrill ! La Paz to Galapagos and " S. 



America." 



- - -i-Mithrodia Bradleyi Verrill ! La Paz to Panama. 

 c-M- -i-Echinaster tenuispina Verrill ! I^a Paz. 



Lepidaster teres Verrill ! La Paz. 

 c~M- -i-Linckia unifascialis Gray ! S. to Zorritos. 



Po. var. bifascialis Gray ! S. to Panama. 

 c-M- -I- Ophidiaster pyramidatus Gray ! S. to Zorritos. 



Heliaster microbrachia Xantus ! Cape St. Lucas to Panama. 



H. Kvhiniji Xantus ! Guaymas, La Paz and Cape St. Lucas. 

 c-M- k-\-Asterias sertulifera Xantus ! Cape St. Lucas. 



