Dr. F. Biiiggemann on Stoni/ Corals. 303 



A. Costal spiues directed upwards ; surface of colu- 



mella spoiigious ; six cycles of septa. 



a. Primary and secoudar}^ septa thickened 



throughout their whole length, with a 

 narrow cavity within ; costal spines fistu- 

 lar; calice oblong or rectangular; coral 

 very short 1. Sc, ciibcnsis. 



b. Septa of tii-st cycles only thickened towards 



the wall, solid, as are also the costal 

 spines. 



1. Calicle circular, rarely oblong ; the 



larger septal teeth and the costal 



spines rather obtuse 2. Sc. lacera. 



2. Calicle strongly lobate : the larger 



septal teeth and the costal spines 



acutely pointed 3. Sc. duhia. 



B. Costal spines directed outwards, or even down- 



wards; columella dense, with subimbricate sur- 

 face, 



a. Five cycles of septa; larger septal and costal 



teeth spiuiform, much pointed 4. Sc. vitiensis. 



b. Four cycles of septa ; larger septal and 



costal teeth knob-like, obtuse 5. Sc. lacrymalis. 



1. Scolymia cuhensis. B.M. 



Cari/aphjllia cubensis, Milne-Edwards & Hainie, Ann. Sc. Nat. (3) 

 Zool. xi. p. 238. 

 ■ LitlaipJtyllia citheitsis, M.-Edw. & Ilainie, Hist. Nat. Cor. ii. p. 292 ; 

 Duch. & Mich. Mem. Accad. Tor. (2) xix. p. -343, pi. v. fig. 10. 



Hab. Cuba ; St. Thomas. 



Pourtales describes his Lith. cuhensis as having the spines 

 of the younger septa branching, sometimes coalescing and 

 perforated ; he unites doubtfully with it L. argemone and L. 

 cylindrica^ both of which are stated to have circular calicles. 

 As these characters are more conspicuous in Sc. lacera^ I am 

 led to believe that his specimens may belong to the latter. 



2. Scolymia lacera. B.M. 



Madrcpora laceiut, Pallas, inench. Zoopli. p. 298 ; Esper, PHanzenth. i. 



p. 148 (pt.), Madrcp. pi. xxv. lig. 2. 

 . CuryophjlUaluccra, JM.-Edw. i^ II. Ann. Sc. Nat. (3) xi. p. 237. 

 Lithophyllia lacera, M. Edw. & 11. Hist. Nat. Cor. ii. p. 291; Duch. & 



Mich. Mem. Accad. Tor. (2) xix. p. 34.3. 

 Lithuphyllia aryemune, Duch. & Mich. Mem. Accad. Tor. (2) xix. j), 



344, pi. ix. lig's. 11, 12, pi. x. tig. 15. 

 Lithophyllia " cubensis,^' Pourtales, Cat. Mus. Comp. Zool. iv. p. 70. 



Hah. Curasao {Pallas) ; St. Thomas (Duch. cO Mich.) ; 

 Tortugas [Pourtales) ; Bermuda [Pourtales). 



With this species I have identified the Lit]io2)hyllia arge- 

 mone^ as the descri})tio)i and figures show no diil'erenccs from 



