KXPI>ANATI()X OF PT.ATES. 



(All liyures \ve!-f drawn by the writer.) 



Platk LXVI. 



Fig. 1. Opheodesoma spectnbilis. From a colored sketch of a medium-sized living 

 animal. About four-fifths natural size. The present illustration does not 

 truly reproduce the shades. The excrescences, and often a narrow trans- 

 verse band between them, are much darker than the interspaces; the former 

 are brown, the latter orange, except posteriorly on the ventral surface, 

 which is grayish barred with darker gray, often almost black. 



Plate LXYII. 



Fig. 1. Actinopijgn nuinritUoia. Rods and grains from ventral perisome, X 200. 

 \a-d. Rods from dorsal perisome, X 400. 



2. Actlnopyga parvula. Table viewed from above, showing crown and disk. 



2a. Slightly larger table from side. 2/>. Disk <>f tal)le. 2c-e. Buttons. 

 2/. Plate and rod from dorsal papilla, X 200. 2r/. Calcareous ring, niedio- 

 dorsal piece without anterior tooth, X 3. 



3. Acl'mupyga ohr><i(. Rods from perisome, X 400. 



4. Holothuria ])(tr<i<hj.i<i. Several rods from dorsal perisome, X 200. 4^. Same, 



X 400. 4//. Rods from dorsal pedicels, X 200. (Seealso Plate LXIX, fig. 5. ) 



5. Same. Various forms of rods from ventral perisome, X 200. 



Plate LXVIII. 



Fig. 1. Tlolnlliuria (■iiit'i'usceiiA. Crown of table. ]'i. Smaller ta]>le from side. 1/*. 

 T^arger table. Ic-le. Various forms of disks of tables. I/'. Rough i-ods 

 from general perisome. All X 200. 



2. Holothuria ]irrrir(i.v. Two views of table. 2<:(. Tables with rudin>entary 



spire. 2b. Various forms of rods from general perisome. 2c. Larger rod 

 intermediate between supi)orting rods and the small button-like rods nf 

 general perisome, X 200. 



3. Holothuria fusconif/ra. Reduced disk of table. 3a-r. Various forms of ta))les. 



3d. Various forms of buttons. 3^. Button from near tip of pedicel, X 200. 



4. . Holothuria hmvaiiensix. Supporting rods of pedicels and papilke, X 200. 

 4o. Two radial and 1 interradial (ir) piece of calcareous ring, X 4. 4I>. 

 Large table from above, showing disk and crown. 4r. One type of small 

 table. 4(7. A large table from side. 4e. Disk of smaller table. 4/'. Another 

 type of small table. 4g. Various forms of buttons, some of them incom- 

 plete, X 200. 



5. Holothuria arenienla. Table from above, the crown, and side. r>a-5A. Two 

 forms of buttons. 5c. Supporting rod, dorsal i>edicels, X 200. 



Plate LXIX. 



Fig. 1. Hohtlhur'ta ))ardnll>t. 1, \a-d. Various forms of tallies; 1/* crown; 1, la disk 

 from beneath, le. Supporting rod 'from pedicel. 1/". Various forms of 

 buttons. Ig. Supporting rod from dorsal pedicel, X 200. 

 2. Holothuria anuUfrra. Disk of table and crown, from above. 2a. Table from 

 side. 21). Table from wall of papilla, viewed from one side; this type 

 rather imconnnon. 2c. A rai-e form of complete button. 2d. Usual form 

 of incomplete knobbed Imttons and knobbed rods, X 200. 



741 



