406 PROCEEDINGS OP THE ACADEMY OF [1881. 



G. libanus SaflFord. Not defined. 



(j. marginatus Billings, see Archxocr. marginatus. 



G. 0" N'ealWa&W, see Reteocr. O'Nealli. 



G. plumoms Hall. Detached columns and arms. 



G. quinquepartitus Billings. Detached columns. 



O. Richardsoni Westerby, see Reteocr. Richardsoni. 



G. siphonatus McChesney. Described from casts. 



Goniasteroidocrinus Lyon and Cass., syn. of Ollacrinus. 

 G.fiscellus Meek and Worth., see Ollacr.fiscellus. 

 G. obovatus Meek and Worth., see Ollacr. obovatus. 

 G. teimiradiatus Meek and Worth., see Ollacr. tenuiradiatus. 

 G. tuberosus Lyon and Cass., see Ollacr. tuberosus. 



Habrocrinus Angelin, syn. of Carpocrinus Miiller. 

 //. anulatus Angel., see Carpocr. anulatus. 

 H. cariosolus Angel., see Carpocr. cariosolus. 

 H. comtus Angel., see Carpocr. comtus. 

 H. decadactylus Angel., see Carpocr. decadactylus. 

 H. grandis Angel., see Carpocr. grandis. 

 H. granulatus Angel., see Carpocr. granulatus. 

 H. Isevis Angel., see Carpocr. Isevis. 

 H. longimanus Angel., see Carpocr. longimanus. 

 H. ornatissimus Angel., see Carpocr. ornatisdmus. 

 H. oriiatus Angel., see Carpocr. ornatus. 

 H. pmnulatus Angel., Carpocr. pinnulatus. 

 H. robustus Angel., see Carpocr. robtistus. 

 H. ttnuis Angel., see Carpocr. tenuis. 

 H. umbonatus Angel., see Carpocr. umbonatus. 



Hadroorinus Lyon. See doubtful genera. 



//. pentagomts Lyon. Imperfectly known. 



Harmocrinus Angelin, syn. of Stelidiocrinus. 



H. lojigimanus Angel., see Stelidiocr. longimanus. 



Hexaorinus Goldfuss. 



H. decagonus Goldf. (Bigsby), see Storthing ocrinus. 



H. depressus Austin, syn. of Hexacr. inter scapularis. 



H. eboraceus Hall (Bigsby), see Platycr. eboraceus. 



H. Eriensis Hall (Bigsby), see Platycr. Eriensis. 



H. fritillus Miiller (Bigsby), see Storthing ocrinus. 



H. melo Austin, syn. of Hexacr. interscapularis. 



IT. nodiger Eichwald. Described from detached columns. 



Icosidactylocriuites Troost. Not defined. 

 Lyrioorinus Hall. 



L. sculptilis Hall. Described from an indistinct cast. 



