TRIBE I. ASTR^EACEA. 349 



TRIBE ASTRjEACEA: APPENDIX. 



TURBINALOPSIS. LAMOUROUX. 



Simplidssimce, subcoryiaz aut pyriformes, basi non affixa, ; corallis la- 

 mello-radiatis, superm excavatis, lamellis alternis minoribus. 



Quite simple, subconical, or pyriform, not attached at base. Coralla 

 lamello-radiate, excavate above: lamellae alternately large and small. 



These species have much resemblance to Fungise. They are 

 oblong-conical in form (nearly like the Fungia glans), with the ex- 

 terior striate as well as marked usually with concentric lines of 

 growth. I have been unable to satisfy myself of the exact relations 

 of these corals, and, therefore, place them in an Appendix. 



The genus Turbinalopsis was introduced by Lamouroux, for a 

 species which he describes as inverted conical and resembling a Tur- 

 binalia. The structure so closely resembles certain other species, 

 that it has been inferred that he gave the wrong position to his speci- 

 men. The species have been placed by Goldfuss, and, after him, by 

 Blainville, in Schweigger's genus Anthophyllum. Morris, in his 

 Catalogue of British Fossils, describes them under the generic name 

 Petraia, which Lonsdale had cited, as used by Count Minister, for 

 these corals. But Phillips, who adopts, with Lonsdale, the name 

 Turbinalopsis, states, in his Palaeozoic Fossils, that in the Beitrage 

 published by the Count in 1840, Petraia had received another appli- 

 cation, and was given by him to a genus of Gasteropoda. 



The name of the genus is a hybrid word, from Turbinalia, and 04/15, 

 appearance. 



Lamouroux, Exp. Meth., 84, tab. 82, fig. 4. chison's Silurian Fossils, 692, pi. 16 

 Phillips, Palaozaic Fossils, p. 1. Blain- bis, fig. 6. Goldfuss, Petref., pi. 13. 

 ville, Man. if Act., 343. Lonsdale, Mur- 



MONOMYCES. EHKENBERG. 



The genus Monomyces of Ehrenberg (No. xlvii.) was instituted for 

 simple (non-budding) attached species, which, excepting these particu- 



88 



