of Corals, ^c, pj 



outfide Coat of the Tubes is made up of circular Stripes, of 

 an A(li-coloured earthy Matter in dijfferent Shades, clofely 

 cemented together ; and the inner Lining, which is lirmly 

 united to the outward one, is made of a tough horny tranf- 

 parent Subftance, with a very fmooth Surface. The Cavity 

 of the Tube is perfedly round, though the Animal, which 

 inhabits it, and is of the Scolopendra Kind, is in Shape fome- 

 what like a Leach extended and compreffed : It appears, by 

 the Mark of its Feet on the Infide, that it can turn itfelf 

 freely about, and rife up, or retreat at pleafure, the better to 

 attack and fecure its Prey. 



This Scolope?idra has two very curious and remarkable 

 Arms, or iCeittaculi ; the left much larger than the right. They 

 are doubly-feathered, as may be feen at the magnified Part 

 atC. 



The Number of Feet on each Side exceed 150. For a 

 further Explanation, 1 fhall refer to the Plate XXXIV. where 

 Figure b^ is the Belly-part of the Animal in its natural Size, 

 hanging out of the Tube. B^ is the Belly-part magnified. 

 Fig. «, is the Back-part of the Head of the Animal in its 

 Tube. A, is the Back-part of the whole Animal a little 

 magnified. Fig. ^, fhews the Lifide of the Tube, with the 

 Shades of Afh-coloured Strata^ feen through the horny infide 

 Lining. 



Sorrn Obfervations on the Formation of the Red Coral, and 

 fome Species (j/White Coral. 



npHE Red Coral of the Mediterranean, fo well known piatexxxv. 

 -■■ among us, appears to be formed from Succeflions of ^ ^'S- "■ '- 

 fmall Tubes, which rife many together, and branch out in 



different 



