39 



fra 0.120— 0.200 lange, og fra 0.050—0.080°"° brede fra 



den ene Tornespids til don anden paa modsat Side. Tab. 

 II, Fig. 42. 43. Dobbeltstjernerne ore stærkt indknebne 

 og næsten glatte paa Midten, brede i begge Ender; de ere 

 0.080""" lange. 0.060""" brede i Enderae og 0.020""" paa, 

 Midten, Fig. 44. Imellem disse sees mere enkeltvis sam- 

 mensatte Stjerner, Fig. 45. og Firlinger i Form af Kors. 

 Formlen de her nævnte tindes der jo andre Spilder, der 

 antage Former, som man træffer dels høiere oppe paa 

 Stammen, dels paa Grenene og Polyperne; men da disse 

 ikke ere særegne for Basaldelen, er del ikke aødvendigt 

 at omtale dem nærmere her. I det Hele tåget søger jeg 

 altid at fremstille de Spikler. der ere eiendommelige for 

 de Dele af Dyrekolonien. hvori tie tindes, og som i væsent- 

 lig Grad kunne hjælpe til Artsbestemmelsen; thi saavidt 

 mine Undersøgelser gaar, fråder man hos en stor Del af 

 Alcyoniderne de samme Spikelformer gjentage sig. medens 

 man i Regelen imellem Fællesformerne tinder andre, for- 

 skjellige fra disse, og som tilhøre den særegne Art. hvori 

 de optræde. 



Paa Stammens nedre Del Ligge Spiklerne mere spredte 

 end paa Basaldelen; de danne dels enkle Spindler med af- 

 stumpede Ender, besatte med temmelig brede Torne og 



ere 0.068 lange. 0.018'"'" brede, Fig. 46. 47. 48. dels 



korsformede Firlinger. 



Paa Stammens Midtparti ligge Spiklerne endnu mere 

 spredte, og her er den hyppigste Form Dobbeltstjernen, 

 Fig. 4'J. hvorimellem sees enkelte af Spindelformerne fra 

 Stammens nedre Del. 



Øverst paa Stammen og tildels paa Hovedgrenene 

 have de mest fremtrædende Spikler Formen af korte Valser, 



0.072 lange. 0.040""" brede, med næsten tvers afskaarne 



Ender, rigt besatte med tykke Vorter, paa hvilke sees smaa 

 Korn, Fig. 50, og vingedannede Spindler med stumpe 



Ender, 0.064""" lange. 0.016 brede, Tab, III, Fig. 4. 5. 



6. 7. 8. 



Paa Grenene tindes, foruden de nysnævnte øverst paa 



Stammen, dels Dobbeltstjerner. 0.060 lange, 0.028 



brede i Enderne. Fig. 11. dels takkede Spindler, og imellem 

 disse enkelte smaa Firlinger, Fig. i>. 10. 



Paa Smaagrenene sees hyppigst Firlinger i forskjel- 

 lige Korsformer besatte med storre og mindre Vorter. 



omtrent lige 



Armene paa Korsene ere meget brede 



extremities, and they measure from <>.12<) — 0.200""" in 

 length. and from 0.050 — 0.080'"'" in breadth, measured 

 from the one spicate-point to the other one on the opposite 

 side (Pl. II, rigs. 42. 43). The bistellates are greatly 

 constricted and almost smooth, at the middle. but broad 



at both extremities; they measure 0.080 in length, 



0.060 ' in breadth at the extremities, and 0.020"™ at the 



middle (Pl. II, rig. 44). Between these there are seen, 

 placed more isolated, complex stellates (Pl. II, rig. 45), and 

 cruciform quadrirplets. Besides the ones mentioned here, 

 yet other spicules are found, that assume forms which we 

 meet with, partly higher up the stem. and. partly on the 

 branches and polyps, but as these are not peculiar to tie 

 basal part it is unnecessary to speak of them, here. 

 Generally speaking, I always endeavour to present the 

 spicules which are peculiar to those portions of the animal 

 colony in which they are found, and which. in an essential 

 measure. are of assistance in deciding the species, because, 

 so far as my observations extend, I tind. in a greal 

 many of the Alcyonoids, the same spicular forms repeating 

 themselves ; whilst, as a rule, between forms "held in com- 

 mon, others are found differing from these, and pertaining to 

 the peculiar species in which they appear. 



In the lower part of the stem. the spicules are 

 situated more dispersed than on the basal part. and form. 

 partly. single fusees with blunted extremities beset with 



rather broad aculeæ, and measuring 0.068 in length, and 



0.018 in breadth (Pl. II, rigs. 46. 47. 48) and, partly. 



cruciform quadruplets. 



On the middle part of the stem, the spicules are 

 situated still more dispersed and, here, the bistellate is 

 the form most frequently met with (Pl. II, hg. 49) ; 

 but amongst them however. a few of the fusiform like 

 those of the lower part of the stem may be seen. 



I ppermost on the stem and. partly. on the main 

 branches. the most prominent spicules have the form of 



short rollers measuring 0.072""" in length, and 0.040 ' 



in breadth and having, almost transversally truncated ex- 

 tremities riehly beset with thick warts. upon which small 

 granules are observed (Pl. II, fig. 50); and also, pennate- 

 formed fusees with blimt extremities. which measure 



0.064 in length, and 0.016 in breadth (Pl. III. figs. 



4. 5. 6. 7. 8). 



On the branches; besides those just mentioned, as 

 upperniost on the stem; we tind, partly. bistellates mea- 

 suring 0.060""" in length. and 0.028""" in breadth at the 

 extremities i Pl. III. fig. 11) partly, spicate fusees. and. 

 between these. a few small quadruplets (Pl. III, figs. 

 9. 10). 



On the branchlets, variously shaped cruciform quad- 

 ruplets are. most frequently. observed, and these are beset 

 with Iarger or smaller warts. The arms of the cross are 



