13 



2. Ferd'ma Cumingii. Yellow or brown; rays rather 

 longer than the width of the Ijody, with a central and a 

 marginal row of larger rounded tubercles and some scat- 

 tered smaller ones ; the larger tubercles on the sides are 

 red when the granules are rublied oft', which they often are. 

 Gray, Ann. N. H. 1840, p. 283. Inhab. West coast of 

 Columbia, H. Cuming, Esq. 



b. The ambulacra toith a series of very small short filiform 

 spines [placed in pairs) with a parallel series of spines 

 near them ; the rays formed of longitudinal series of 

 tubercles united by transverse ossicula ; dursal wart 

 intricate. 



* Spines near the ambulacra larger than the ambulacral 

 ones. 



XXIV. Dactylosaster. Rays cylindrical, nearly smooth, 

 formed of regular oblong ossicula, each furnished with a 

 central group of unequal short mobile tubercles ; dorsal 

 wart 1. Gray, Ann. N. H. 1840, p. 283; Mull. ^ Trosch. 

 Ast. 33. 



1. Dactylosaster cylindricus. Reddish, brown marbled; 

 rays elongated, cylinck-ical, blunt, with eight rows of groups 

 of spinous tul3ercles, three times as long as the width of 

 the body. Gray, Ann. N. H. 1840, p. 283. Asterias ey- 

 lindrica. Lam. ; Gray, Ency. Metrop. t. . f . ; Miill. &; 

 Trosch. Ast. 33. Inhab. " Isle of France," W. E. Leach, 

 M.D. 



2. Dactylosaster gracilis. Reddish, brown marbled ; rays 

 slender, four times as long as the width of the body, with 

 seven rows of groups of small spines. Gray, Ann. N. H. 

 1840, p. 283 ; Mull, i,- Trosch. Ast. 33. Inhab. West coast 

 of Columbia, H. Cuming, Esq. 



XXV. Tamaria. Rays cylindrical, formed of seven series 

 of granular convex roundish ossicula, each of the upper 

 ones with three or four unequal and the lower ones witli a 

 central short blunt spine. Gray, Ann. N. H. 1840, p. 283 ; 

 Miill. ^- Trosch. Ast. 33. 



1. Tamaria fusca. Brown; rays rather tapering. Gray, 

 Ann. N. H. 1840, p. 283 ; Miill. ^ Trosch. Ast. 33. Inhab. 

 Migupou, H. Cuming, Esq. 



XXVI. CisTiNA. Rays cylindrical, nearly smooth, formed 

 of rows of three-lobed flat ossicula, each furnished with a 

 central moljile spine ; dorsal warts (one or two) oblong. 

 Gray, Ann. N.H. 1840, p. 283; Miill. cy Trosch. Ast. 34. 



1. Cistina Columbia. Yellow; arms rather more than four 

 times as long as the width of the body, with seven rows of 

 spines. Gray, Ann. N. H. 1840, p. 283; Miill. is; Trosch. Ast. 

 34. Inhab. West coast of Columbia, H. Cuming, Esq. 



The larger specimen has two very distinct dorsal warts ; 

 but I can only see one very obscure one in the smaller 

 specimen. It may be a monstrosity in the large specimen. 



XXVII. OrniDiASTER. Rays cylindrical, clougate, mii- 

 formly granular all over, without any spines ; back with a 



small central group of larger tubercles; dorsal wart concave, 

 with radiating or twisting grooves. Gray, Ann. N. H. 1840, 

 p. 383 ; Agassiz. Ophidiaster §*, Miill. (^ Trosch. Ast 27. 



t Rays cylindrical, blunt. 



1. Ophidiaster aurantius. Orange; rays with seven rows 

 of rounded tubercles, about four times as long as the width 

 of the body ; spines near the ambulacra short, ovate, club- 

 shaped. Gray, Ann. N. H. 1840, p. 284. ? Asterias ophi- 

 diana, Lamk. ii. 567. Ophidiaster ophidianus?, Agassiz ; 

 Miill. &; Trosch. Ast. 28. Inhab. Madeira, rocks on Porto 

 Santo Laureufo, Rev. R. T. Lowe. 



2. Ophidiaster Leachii. Rays elongate (smooth?) with 

 eight or nine irregular rows of unequal tubercles. The 

 spines near the ambulacra club-shaped, rather dilated and 

 more compressed at the tip. Gray, Ann. N. H. 1840, 

 p. 284. Asterias cylindricus?, La?MA. ii. 587. Ophidiaster 

 cyliucb'icus, Miill. ^ Trosch. Ast. 29. Inhab. "Isle of 

 France," Dr. W. E. Leach. 



3. Ophidiaster Guildingii, Gray. Pale brown (dry); rays 

 cylindrical, four times as long as the width of the body, 

 with seven series of moderate tubercles ; the spines near 

 the ambulacra compressed, thin, ovate. 



Var. 1. female? Rays thick; spaces between the tuber- 

 cles large, with numerous dots. 



Var. 2. male ? Rays thin ; spaces between the tubercles 

 small, -n-itli four or six dots. Gray, Ann. N. H. 1840, p. 284. 



See a. Opb. Hcmprichii, Miill. l^ Trosch. Ast. 29; Red 

 Sea. 



ft Rays round, tapering, acute. Hacelia. 



4. Ophidiaster attenuatus. Rays rouudcd, elongate, nearly 

 fonr times as long as the width of the depressed body, 

 broad at the base and tapering, with nine rows of triangular 

 tubercles ; spines near the ambulacra large, ovate, blunt. 

 Gray, Ann. N. H. 1840, p. 284, Miill. ^ Trosch. Ast. 29; 

 A. coriacea, Grube, 22. Inhab. . (Brit. Mus.) 



ttt Rays triangular, tapering, with three inte^-rupted bands 

 of pores on each side. Pharia. 



5. Ophidiaster piyramidatus. Rays subangular, elongate, 

 nearly four times as long as the width of the pyramidical 

 body, with seven rows of tubercles ; the central dorsal 

 series much the largest ; spines near the ambulacra ovate, 

 subacute. Gray, Ann. N. H. 1840, p. 284 ; Miill. &; Trosch. 

 Ast. 33. Inhab. Bay of Caraccas, West Columbia, on the 

 rocks, H. Cuming, Esq. 



** Series of spines near the ambulacra nearly of the sairie 

 size as the ambulacral ones. 



XXVIII. LiNCKiA. Gray, Ann. N.H. 1840, p. 284 (not 

 Michcli) . Linckia, Nardo tV Agassiz, not Persoon nor Cav. 

 Ophidiaster, Miill. &; Trosch. Ast. 30, 1843. 



t Rays 5, cylindrical, with the groups of pores scattered on 

 the whole surface. 



1. Linckia typtcs. Pale yellow (dry); rays cylindricjil. 



