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* Glacialis. With five angular rays, tfjangles with 

 prickly protuberances. It inhabits the Ndh feas, and 

 feeds on oyiters. The rays are thick and lan(oIate. The 

 body, when alive, is rufous, undulate with wije, fometimes 

 cinereous brown, or green ; the di/lc above witlubercles dif- 

 pofed in a circle, beneath hollow : the tentr.ila are nume- 

 rous, pellucid, with a row of fmall pinnulein each fide ; 

 the back is marked with a round Itriate operdum or lid. 



*Clathrata. With five Ihort thick raj; hirfute be- 

 neath, and cancelled above. It inhabits the liropean feas ; 

 and is defcribed and figured in Pennant's Brifh Zoology. 



EcHiNiTiiS. With twenty rays, each wit two rows of 

 fuckers, and numerous large and fmall movedle fpines. It 

 inhabits Batavia. The diik as well as the ras are covered 

 with fmall moveable fpint-;. 



Reticulata. Rays four, reticulate wit^ prickles. It 

 is found in the Indian feas. 



Phrygiana. This fpecies is every whre befet with 

 papilla, which are beneath of a rofy colou, It is found 

 on the coalts of Norway. 



Nodosa. With five convex rays, longitucfnally elevated, 

 and muricate : it is met with an the coalts ofihe Indian feas. 



* Violacea. Lax, with a grey-browi furface, and 

 violet tubercles ; it has five rays. InhabitSthe European 

 and Northern feas. The body has fometints a violet fur- 

 face, and marked fometimes with violet ubercles only ; 

 thefe are either difpofed in rows, or irregUarly fcattered ; 

 the diflv is orbicular ; the rays lanceolate'aid reddifli at the 

 tip ; beneath yellowifh in the grooves. 



Sangl'inolenta. Above fanguineousj the rays are 

 tipt with white. It inhabits the North feas 



Perforata. Unarmed ; with perforaed dots on the 

 back. This alfo is an inhabitant of the Ncrth feas. 



Aranciaca. Difli broad ; rays five, fib-depreffed, and 

 prickly at the margins : in the Mediterraneal and North feas. 



* Equestris. Five rays ; dilk reticutte, and perfo- 

 rated with dots ; tubercles five; margin ful-articulate ; be- 

 neath a fingle row of tentacula : an Europtan fpecies. 



La;viGATA. With five femi-cylindrical obtufely eight- 

 angled, unarmed rays. It inhabits the Mfditerranean and 

 Indian feas. The rays are covered with otfolete warts, and 

 between them, at the fides, are hollow das ; beneath, the 

 warts are difpofed in quincunx. 



*Membranacea. With five broad' membranaceous 

 rays, extremely thin and flat. Inhabits tie European and 

 Mediterranean feas. The rays are rough, with tubercles ; 

 beneath with five elevated convex ribs. 



Granulosa. Pentangular, unarmed, each fide teffel- 

 late with granulations, the margin is join(ed. It is found 

 oil the coafts of the ifland of Santa Cruz. 



C. Radiate. 



Rosea. Rough, with reticulate granulations; rays 

 round. This fpecie., is found in the Belgic and Norway 

 feas, and is reckoned extremely elegant. Body above of a 

 rich rofe-colour, fometimes inclining to orange, with 

 blackifli dots between the granulations ; beneath whitilh, 

 with dilated grooves ; a quadruple row of tentacula, and 

 five rows of divergent pinnules ; rays white at the tip. 



Pertu.sa. Rough, rays round, with a narrow, gibbous 

 bafe. This inhabits the North feas. 



* Ophiura. Difk fcaly ; fcale of the angles ferrate. 

 It inhabits the ocean, is very fmall, and moves (lowly. The 

 body above is generally grey, reddilh, or violet, rarely 

 vrhite ; glabrous, with five rays ; the di(k is orbicular ; the 

 rays are four times as long as the body, (lender, quadrangu- 

 lar, flexuous, and covered with a fingle row of fcales. It 



S T A 



has been afTumed, rather than proved, that the mifchievous 

 effefts which at certain times of the year are produced by 

 eating the common mufcle, are occafioned by their having fed 

 upon this fpecies of allerias. 



AcuLEATA. With glabrous prickles ; it is fhorter than 

 the diameter of the rays. It inhabits the ocean. It has 

 five rays. The body varies in colour ; it is in (hape orbicu- 

 lar, with minute fcales beneath, fix of which refemble a corol. 



CiLiARis. With rough fpines, longer than the diameter 

 of the rays. It inhabits the Indian and North feas. 



* Sph.'ERUlata. With five flender-jointed rays, hirfute 

 on the fides ; with a fmall globular head between the bafe 

 of each ray. It inhabits the European feas. The body \t 

 pentangular, indented, fmooth above the aperturCi beneath 

 it is five-pointed. 



* Pentapiiylla. This fpecies is known by five (lender 

 rays, hirfute at the fides, and teflellate above, and below 

 green, fometimes with (ky-blue. It inhabits the Britifh 

 coalts. The body is regularly pentangular. 



*Varia. With five hirfute rays, annulate with red; 

 the body is circular, with ten radiate llreaks ; the ends are 

 lozenge-form. This alfo is found on our own coalts, as 

 are the four that follow. 



* Aculeari.s. This fpecies is known by its five (lender, 

 hirfute rays ; the body is rouod, with alternately broad and 

 narrow ilreaks from the centre. 



* Hastata. With five hirfute, jointed rays ; the body 

 is pentagonal and indented, brownilh-red, with ten ochra- 

 ceous Itreaks, five flender, with javelin-fhaped extremities. 



* Fl.ssA. With five flender, hirfute rays ; the body is 

 circular, with five equi-diitant dents, penetrating deep into 

 the fides, and five light-coloured llreaks from the centre. 



* Nigra. This alio has (I'te hirfute olive rays, telfellate 

 with deeper (hades : the body is pentagonal, black, with 

 five radiate itreaks of white. 



Tenell.\. With ten pectinate rays above ; and filiform 

 ones beneath, which are thickcr.ed at the joints. It is 

 found on the coalls of Santa Cruz. The body is white ; 

 the Item of the rays is longer. 



* Pectinata. With ten peftinate rays above, and 

 fewer filiform ones beneath ; the joints are equal ; diflc 

 fmooth above. It inhabits the European and Indian feas. 

 The body is covered above with five unequal valves ; the 

 colour is of a deep red ; the filiform rays beneath are termi- 

 nated by an incurred claw. 



Multiradiata. This fpecies has ten palmate, fub- 

 quadrifid, peAinate rays above, and numerous filiform ones 

 beneath ; the diflc is granulate : inhabits the Indian ocean. 



* Caput Medus.ie. With five divided and fub-divided 

 rays ; difk and rays granulate ; mouth deprelFed. This 

 fpecies inhabits moft feas, and is an extremely curious fea- 

 animal ; the five rays dividing into two fmaller ones, and each 

 of thefe dividing again into two others ; which mode of re- 

 gular fub-divifioQ is continued to a valt extent, gradually de- 

 creafing in fize, till at length the ramifications amount to 

 many thoufands, forming a beautiful net-work. Its colour 

 is fometimes pale or reddifh-white, fometimes brown. 



EuRYALi. Rays divided and fub-divided ; dillv papillous, 

 and with the rays granulate ; the mouth is a little raifed. 

 It inhabits the Cape of Good Hope. 



Oligcetes. Rays very long and fimple, with two acute 

 moveable Ityles at each joint. Found near Curafiba, ad- 

 hering to gorgonix. The body is pentangular, minute, 

 ochraceous, and rather hard. 



NiGRiTA. With five jointed rays, covered with imbricate 

 fcales above, and lateral patulous ramifications ; the diilc is 

 obtufely pentangular and granulate. 



Tri- 



