CONTENTS. 



Systematic Descriptions Continued 

 Suborder Clypeastrina Continued 



Family Clypeastridae 31 



Anomalanthus 31 



A. gregoryi Lambert 31 



Clypeaster 32 



C. rosaceus (Linne) 33 



C. concavus Cotteau * 34 



C. caudatus, sp. nov 36 



C. dalli (Twitchell) 37 



C. cubensis Cotteau 37 



C. parrae Desmoulins 38 



C. lanceolatus Cotteau 38 



C. antillarum Cotteau 39 



C. planipetalus Cotteau 40 



C. cryptopetalus, sp. nov 40 



C. cotteaui Egozcue 41 



C. batheri Lambert 42 



C. parvus Michelin 42 



C. duchassaingi Michelin 43 



C. ambigenus (Lamarck) 43 



C. placentoides, sp. nov 43 



C. meridanensis Michelin 44 



C. oxybaphon, sp. nov 44 



C. platygaster, sp. nov 45 



Family Laganidae 46 



Laganum 46 



L. elongatum Egozcue 47 



Peronella 47 



P. mirabilis, sp. nov 47 



Family Scutellidas 48 



Echinarachnius 48 



E. sebastiani, sp. nov 48 



Encope 50 



E. ciae de Cortazar 50 



E. latus, sp. nov 51 



Mellita 52 



M. sp 52 



Suborder Spatangina 52 



Family Echinoneidae 54 



Echinoneus 54 



E. orbicular is Desor 54 



E. cyclostomus Leske 54 



Amblypygus 55 



A. americanus Desor 55 



Family Nucleolitidae 56 



Parapygus 56 



P. antillarum (Cotteau) 56 



P. parallelus (Cotteau) 57 



Echinolampas 57 



E. semiorbis Guppy 58 



E. antillarum Cotteau 59 



E. ovumserpentis Guppy 60 



E. clevei Cotteau 63 



E. lycopersicus Guppy 64 



E. castroi Cotteau 66 



