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Menipea jeffreysii, Norman. 



Hincks, (8), p. 42, tab. 9, fig. 1—2. 

 Norman, (17, vol. 12), p. 446, tab. 19, fig. 1. 

 Nordgaard, (18, I), p. 11, tab. 2, fig. 5. 



Findesteder. St. 10, 18. 



Arten er tågen hist og her langs Norges kyst fra 

 Bergen til Østfinraarken; er forøvrigt kun kjendt fra Shet- 

 land. Jeg har i de to sidste aar fundet den flere gange i 

 fjordene ved Bergen. Alle de eksemplarer, jeg har seet, 

 har været forsynede med det eiendommelige kitinøse støtte- 

 apparat. 



Rflenipea normani, n. sp.*). 



Tab. I, fig. 2—8. 

 Findesteder. St, 31, 200, 323. 



Jeg har vistnok ikke havt tilstrækkelig literatur til 

 at gjøre mig bekjendt med alle menipea-årter, som er op- 

 ført i Jelley's katalog, men da jeg tror, det er overveiende 

 sandsynlighed for, at den Menipea, jeg har havt mellem 

 hænder, er ny og ubeskreven, vil jeg her i korthed karak- 

 terisere den. 



Zoariet udspringer fra en enkelt stamme, som er 

 sammensat af kitintuber, og hvis nedre ende er fæstet til 

 en smaasten eller lignende. Grenene er dikotomisk delte 

 og ligger ikke alle i samme plan. De er støttede af kitin- 

 tuber, som næsten udelukkende forløber efter bagsiden. 

 Zoocierne er forlængede og ordnede i en dobbeltrække. 

 Mundingen oval og mundingsranden noget ophøiet. Ved 

 den distale rand sidder 3 — 5 børster eller pigger. Disse 

 kan paa de ytterste zoocier i grenene have en længde af 

 0.8—1.0 mm. 



Der er to slags avicularier. De laterale er ganske 

 sraaa, og de sidder saa langt bagud, at de tildels ikke sees, 

 naar grenen ligger i frontstilling. Derimod rager front- 

 aviculariet, som er fæstet lige under den proximale raun- 

 dingsrand, langt frem over mundingen. Den lille mandibel, 

 som sidder i toppen, er rettet nedad. Oociernes længde 

 er større end bredden, paa mange forekommer bugtede for- 

 ty kkelser i front væggen. Til operculum saaes ikke spor af 

 antydning. Kolonierne var ikke saa godt konserverede, at 

 noget sikkert kan siges om polypidet. 



De oven omtalte kitintuber udspringer fra den nederste 

 del af zoocierne, hvorefter de forløber efter zoociernes bag- 

 side for tilslut at samle sig i en enkelt stamme, som saa- 

 ledes bestaar af en bundt af kitinrør. I dette stykke er 

 der altsaa stor overensstemmelse mellem M. jeffreysii og 



Menipea jeffreysii, Norman. 



Hincks (8), p. 42; Pl. IX, figs. 1, 2. 



Norman (17, Vol. 12), p. 446; Pl. XIX, fig. 1. 



Nordgaard (18, I), p. 11; Pl. II, fig. 5. 



Occurrence. St. 10, 18. 



This species is found here and there along the coast 

 of Norway from Bergen to East Finmark. Otherwise it 

 is only known from the Shetland Isles. During the last 

 two years, 1 have found it several times in the fjords round 

 Bergen. All the specimens I have seen, have been fur- 

 nished with the peculiar, chitinous case. 



Menipea normani, n. sp.*). 



PI. I, figs. 2—8. 

 Occurrence. St. 31. 200, 323. 



My knowledge of the literature on this subject is not 

 sufficient to have made me acquainted with all the Menipea 

 species that appear in Jelley's catalogue; but as 1 think 

 there is every probability that the Menipea I have had in 

 my hands is new and hitherto undescribed, I will here 

 briefly characterise it. 



The zoarium springs from a single stem which is 

 composed of chitinous tubes, and whose lower end is at- 

 tached to a small stone or something similar. The branches 

 are dichotomous, and do not all lie in the same plane.. 

 They are supported by chitinous tubes, which run almost 

 exclusively along the posterior side. The zoæcia are elon- 

 gated, and arranged in a double row. The mouth is oval, 

 and its edges somewhat elevated. On the distal margin 

 there are from 3 to 5 bristles or spines. On the outer- 

 most zoæcia in the branch, these may be from 0.8 to 1 mm. 

 in length. 



There are two kinds of avicularia. The lateral are 

 quite small, and are placed so far back that they some- 

 times cannot be seen when the branch is viewed from the 

 front. The front avicularium, on the other hand, which 

 is attached just below the proximal margin of the aperture, 

 extends far over the aperture. The little mandible, which 

 is situated at the top, is directed downwards. The length 

 of the ooecia is greater than their breadth ; in many there 

 are curved expansions of the anterior wall. There is no 

 sign of any operculum. The colonies were not in such a 

 good state of preservation as to allow of anything certain 

 being said about the polypides. 



The above-mentioned chitinous tubes spring from the 

 lowest part of the zoæcia, and then run along their poste- 

 rior side, to unite at last in a single stem, which thus 

 consists of a bundle of chitinous tubes. In this respect 

 therefore, there is a great similarity between If. jeffreysii 



*) Opkaldt efter the Hev. Canon Norman, som har leveret store 

 bidrag til udforskningen af vor marine fauna. 



*)■ Named after the Rev. Dr. Norman, who has made large con- 

 tributions to the knowledge of our marine fauna. 



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