CCELENTERATA. 
779 
Haeckel (Bcitragc zur Natiirgescliichtc der Hydromcdusen, 
p. 22) proposes the following scheme for the division of the 
GERYONIDiE. 
I. 
Foiu’ radial canals. 
(No centripetal 
canal). 
Ijiriopida. 
No tongue-like 
process .... 
\Liriope) . . 
A tongue-like 
process .... 
( Glossocodo7t) 
8 tentacles 
4 
8 
4 
1. Xanthea. 
2. Liriope. 
3. Ghssoco7ius. 
4. GlossocodoTt. 
II, Six radial canals. 
Carma7'mida. 
tNo centripetal 
No tongue-like j canal 
process .... 1 Many centripetal 
( canals 
A tongne-like 1 Many centripetal 
process . . . . | canals 
5. Leuckartia. 
6. Geryo7iia. 
7. Cav77iarma, 
Dr. Kirciienpauer (/. c. p. 1) indicates the chief distinc- 
tions b(^tween Dtpi.amena (Lamouroux) atid the Linncan genus 
Bey'iularia. He arranges the species as follows, and describes 
and figures those marked as new : — 
I. Oris margine integro. 1. Dy7iame7ia rosacea^ Lx. ; 2. D. pinaster^ Lx. ; 
3. 1). 77ia7'ga7'cta, Hass, ; 4. D. pinyiata, Flem. ; 5. D. fUcula, Flein . ; 6. D. 
tuhifor77iis, Lx. ; 7. D. distuTis, Lx. ; 8. JD. luceryiaria, sp. n., habitat Nuka- 
hiwa, South Sea ; 9. D. confe7'ta, sp. n., habitat Carpenteria, Australia ; 10, 
D. serttda7'ioidcSj Lx. ; 11. D. ohliqua, Lx. ; 12. D. tu7’hmata, Lx. 
II. Ore miicronato. 13. Blainv. ; 14. Lx. ; 15. 
D. ta77ui7‘isca, Flem. 
III. Ore hiciispidato. 16. Dy7ui77ic7ia hicuspidata^ Lmck. ; 17. D. aust7’alisj 
sp. n., habitat l^rt Philip, Australia; 18. D. pmna, sp. n., habitat Bass 
Strait, Tasmania. 
IV. Ore bispiuoso. 19. DrpiaTncTia operculata, Lx. ; 20. D. pulchella^ D’Or- 
bigny; 21. D, fascicidata, sp. n., habitat Sydney, New South Wales. 
V. Ore bidentato. 22. Dy7iame>ia diverge7is, Lx. ; 23. D. distichaj Lx. ; 
24. D, ma7'gi7iata, sp. n., habitat Pacific Ocean. 
VI. Ore pluridentata. 25. J)y7ia77ie7ia gy'osse-deTrdata,, sp. n., habitat Aus- 
tralia ; 26. Se7didaria tricuspidata (Murray nec Alder*); 27. S. plurideyitalaf 
sp. n., habitat Cape of Good. Hope. 
VII. Form of cells unknown to author. 28. Dy7ia77ie7ia evayisiiy Lx. ; 
29. D. mdivisay Meyer ; 30. D. rigida, Blainv. 
Aglaophmita plimya and A7ite7i7mlaria mite7%7ima. In both of these Allman 
found (/. c. p. 203) that the soft granular mass in the Nematophores has the 
power of emitting very extensile and mutable ‘‘ pseudopodia,” which com- 
ported themselves in every respect as would the pseudopodia of an A777oiba, 
They were noticed in both the lateral and mesial Nematophores. 
Pe7'igo7iim7(s vestitus, sp. n., Allman (Ann. & Mag. Nat. Hist. July, 1864, 
p. 57 ; Po7igamvillia fy tdicosa, sp. n,, Alim. 1. c. p. 68 ; Hetey'ocordyle co77yhea7'eif 
* This species, with three spines on the outer border of the cell and with 
the habit of D. operculata, very probably belongs to this section. 
