REPORT ON THE ASTEROIDEA. XXX1X 
Subfamily 4. VaLvasTerIn&, Vicuier, 1878, 
Echinasteridze with moderately developed disk and five rays. Abactinal plates regu- 
larly disposed, bearing small isolated spinelets. Marginal plates with large valvate pedi- 
cellariz. Actinal intermediate plates bearing one or more large flattened spinelets. 
Genus 1. Valvaster, Perrier, 
For a Synopsis of the Subfamilies and Genera included in the Family Echinasteride, 
see p. 536, 
Family VII. Heirtasterip®, Viguier, 1878. 
Cryptozonate Asterids with largely developed disk and very numerous short rays. 
Abactinal skeleton reticulate, with plates bearing isolated or grouped spinelets, but never 
composite or paxilliform. With double interbrachial septa. Armature of the adambulacral 
plates simple, monacanthid. 
Genus 1, Heliaster, Gray. 
Family VIII. PepiceELLASTERIDs, Perrier, 1884. 
Cryptozonate Asterids with a small disk and narrow subcylindrical rays. Abactinal 
skeleton composed of narrow band-like plates, disposed longitudinally and transversely, 
forming wide quadrangular meshes. With short isolated spinelets at the decussations. 
Actinostomial margin defined by adambulacral plates. Ambulacral tube-feet biserial. 
Numerous large forcipiform pedicellariz. 
Genus 1. Pedicellaster, Sars. 
Family IX. AstEer1iIp&, Gray, 1840, emend. 
Cryptozonate Asterids with an irrecular or subreeular reticulate abactinal skeleton 
composed of {small unequal plates, which bear isolated or grouped spinelets. Actino- 
stomial margin defined by ambulacral plates. Ambulacral tube-feet quadriserial. Pedi- 
cellarize of two forms, forficiform and forcipiform. 
Genus 1. Asterias, Linné, 
Genus 2. Uniophora, Gray. 
Genus 8. Calvasterias, Perrier. 
Genus 4. Anasterias, Perrier, 
Genus 5. Pycnopodia, Stimpson. 
? Genus 6. Coronaster, Perrier. 
? Genus 7. Astrella, Perrier. 
