Echin. 59 
SYSTEMATIC. (IV, A, B.) 
IV. SYSTEMATIC-)*. 
(A.) — ECHINODERMA in General. 
Echinoderms placed with Vermiformia and Chordata in a group 
‘ Bilateralia pleurogastricaj and divided into 5 Classes, Pelmatozoa 
ranking as one ; Goette (105) pp. 307-328. — Echinoderms in six 
Classes : 1 Hoi., 2 Ech., 3 & 4 Stelleroidea (Ast. and Oph .), 5 Crin., 
6 Cyst. (incl. Edrioasteroidea and Blast.), for further new divisions see 
under Crin. and Cyst. ; Steinmann (299) p. 142. — Echinoderms 
classified as A. Pelmatozoa {Crin., Cyst., Blast.), B. Aster ozoa {Oph., 
Ast.), C. Echinozoa {Ech., Hoi.) : for further divisions, see under 
Classes ; Zittel (339) p. 124. 
(B.) — HOLOTHURIOIDEA. 
History of classification of Hoi. from Theel (1882) onwards, following 
system proposed : Sub-class I. Pedata, Ord. i. Aspidochirota , Famm. 1. 
Synallactidae, 2. Deimxitidae, 3. Elpidiidae, 4. Psychropotidae , 5. Holo- 
thuriidae , 6. Pelagothuriidae. Ord. ii. Dendrochirota , Famm. 1. 
Cucumanidae , 2. Rhopalodinidae. Sub-class II. Apoda, Ord. i. 
Anactinopoda, Fam. Molpadiidae. Ord. ii, Paractinopoda, Famm. 1. 
Synaptidae, 2. Chirodotidae, 3. Myriotrochidae (see further under these 
names in Index) ; Perrier (254) pp. 288-297. 
Actinocucumis donnani n. sp., Galle, Ceylon ; Pearson (250) p. 195, 
pi. ii. 
Actinopyga sp. ; Bell (12). A. mauritiana , colour, A. serratidens n. sp., 
lagoon at Galle, Ceylon (pi. iii) ; Pearson (250) p. 199. 
Allantis rejected ; Ostergren (244) p. 31 : Perrier (254) p. 309. 
A. intestinalis (p. 66) var. verrilli (p. 71); Richard (271). 
Anactinopoda , ord. nov. of Apoda, comprising only Molpadiidae (p. 291) 
diagnosis (p. 524) ; Perrier (254). 
Ankyroderma, diagnosis ; Perrier (254) p. 528. A. jefreysii ; Norman 
( 239) p. 412 : Ostergren (244) p. 11 : incl. A. affine ; Michailovskij 
( 223) pp. 470, 522. A. loricatum R. Perr. 1898, off Senegal, 1090- 
2324 m., descr., sclerites figd. (p. 535, pi. xxii), A. maroccanum 
R. Perr. 1898, off Morocco, 2210 m., descr. and first figd. (p. 533, 
pi. xii) ; Perrier (254). A. musculus ; Lo Bianco (190) p. 460 : 
incl. A. danielsseni, descr., sclerites figd. ; Perrier (254) p. 529, 
pi. xxii. 
Apoda, diagnosis as Subclass ; Perrier (254) p. 524. 
Aspidochirota rediagnosed as Order of Pedata ; Perrier (254) p. 299. 
Bathyherpistikes, diagnosis ; Perrier (254) p. 358. 
Bathyplotes , incl. Herpysidia, rediagnosed and validity discussed, list of 
spp. ; Perrier (254) p. 345. B. natans ; Ostergren (244) p. 6. 
B. reptans (R. Perr. sub Herpysidia, 1898), off Morocco, 2212 m., 
redescr. and first figd. (p. 352, pis. xii, xviii), B. tizardi, descr. 
(p. 350) ; Perrier (254). 
f A dagger prefixed to the name of a speeies indicates that it is fossil ; prefixed 
to the name of the author, it denotes that the reference is to the species in a fossil 
state; prefixed to the name of a genus* it indicates that all species in the same 
paragraph are fossil, and the f is therefore not repeated before each name. The 
abbreviations l. c. and op. cit. refer only to the place or work quoted immediately 
before. 
A name and reference quoted without further statement [e.g. Ankyroderma je frey- 
sii ; Norman (239) p. 412] indicate that the quoted author’s statement refers to a 
question of no systematic importance. Further information can usually be gleaned 
from the cross-references under Titles. 
1903. [Vol. xl.] 
„ E 28 
