101 



3. Næsten fuld Skjælbeklædning, men Nakken, Fin- 

 nerne, samt Stykket mellem Anus og Analen ere nøgne(i). 



4. Nakken. Finnerne, samt uttest tallige Grunden 

 nærmest Dorsalen og Analen nøgen. Bugen er i Midten 

 enten ganske aøgen, eller har blot en kort isoleret Skjæl- 

 stribe fortil, medens Siderne af Bugen altid ere skjælbe- 

 klædte (a, b, c, d, e, g, m, o), 



5. Som fbregaaende; paa Legemets Sider strækkef 

 Skjælbeklædningen sig blot noget indenfor Péctoralens Spidse 

 (h. n). 



Sidelinien er enkelt, og særdeles lavtliggende (ventral). 

 Den er Ims- de Heste Individer forholdsvis særdeles tydelig, 

 og lader sig i Regelen med Lethed forfølge, ialfald i sin 

 første Halvdel. Den udspringer ved Gjællespaltens øvfe 

 Ende. løber derfra hurtigt og skraat nedover omtrent midt 

 under Péctoralens Midte, hvorfra den bøjer næsten ret 

 bagover, og lolier parallelt med Buglinien i ringe Højde 

 over denne, i mlt.il den har naaet omtrent over den 25de 

 Straale af Analen (eller næsten Midten af denne Finne). 

 Her synes den hos de fleste Individer at ophøre eller blive 

 utydelig: hos enkelte lader den sig dog forfølge videre, 

 idet den ved det nævnte Punkt gjør en liden Bøjriing næ- 

 sten lige ned til Granden af Analen. og løber nu langs 

 denne lige ud mod Halespidsen. 



Porerae i Sidelinien ere forholdsvis smaa, hvidagtige, 

 og forbundne indbyrdes med en smalLinie af samme Farve; 

 de ere overalt temmelig tætstaaende, og jeg har talt om- 

 trent 53 Stykker indtil Sideliniens Bøjning over Analens 

 Midte. 



Af Hovedets Slimporer kan mærkes eu Række, be- 

 staaende af omtrent 7 Porer, der udspringer paa hver 

 Side af Pandeii. omtrent i en Øjeiidiameters Afstand bag 

 Øjnene. og løber bagover mod Nakken, hvor den møder 

 en tvergaaende, kortere Række af omtrent 3 Porer paa 

 hver Side. Paa Grjællelaagene staar en vertical Række af 

 omtrent 6 Porer. Endelig løber en Rakke, der i Regelen 

 kuri med Vanskelighed kan sees, fra Gjællespaltens øvre Ende 

 bagover i ringe Afstand under Dorsalen : Mellemrummet 

 mellem hver Pore er vexlende, men altid betydeligt større, 

 end mellem Porerne i Sidelinien. Den ophører noget 

 bagenfor Legemets Midte. 



Farven er hos alle Individer ensartet mørkt rødag- 

 tig graa eller brungraa, uden Spor af Baand eller Pletter 

 i nogen Alder. Skjællene ere ubetydeligt lysere, end Grund- 

 farven. De yngre Individer ere noget lysere, end de ældre, 

 og have brunligrod Dorsal og Anal. Bugsiden er kun ube- 

 tydeligt lysere, end Oversiden; hos yngre Individer er den 

 blaasorte Bughinde gjemiemskimiende. Alene. Hovedets 

 Underside er noget lysere, end Legemets øvrige Del ; Anus' 

 Rande ere hvidagtige. Mundhuleu er hvid. Etterat have 

 været opbevarede paa Spiritus er Farven bleven noget 

 mattere. 



• Geiwrutioitxorga neme vare hvilende. Det største In- 

 divid {p\ var en Han; blot bøjre Testis var udviklet, 

 medens den venstre var rudimenta')-, og havde en Negls 

 Størrelse. 



'.',. Almost fully scaled, the nape, tins, and the space 



between the vent anil the anal only being naked (/'). 



4. The nape, the tins, and generally too the basal 

 traet next to the dorsal and anal naked. The belly either 

 wholly naked in the middle or with a scaly strip, which is 

 short and isolated: the sides of the belly invariable sealed 

 {«. I'. <\ il. e, .'/. lit. <>). 



5. Similar to the foregoing; on the sides ol' the 

 hody. the scaled integument extends hut very little far- 

 ther than the extremity of the pectorals (h, n'). 



■ Lateral line single and low in position (ventral). In 

 most of the individuals very distinct, comparatively, and may 

 be easily traced, the first half at least. It commences at 

 the upper extremity of the gill-opening, passing from thence 

 obliquely downwards, about under the middle of the pec- 

 torals, where it bends almost straight backwards, running 

 parallel to the ventral line, at a slight elevation above it 

 till about over the 25th ray of the anal (or nearly to the 

 middle of that fin); here, in most of the specimens; it would 

 appear to terminate, or to become obsolete; in some, how- 

 ever, it may be traced some distance further; when such 

 is the case, it makes at the said point a small bend, des- 

 cending obliquely, almost to the base of the anal, and ac- 

 companying that tin straight to the tip of the tail. 



The pores in the lateral line are comparatively small, 

 whitish, and connected together by a narrow line of the 

 same colour; they are rather closely set, and I have 

 counted as many as 53 from the origin to the bend above 

 the middle of the anal. 



Of the mucous pores of the head, may be mentioned 

 a series consisting of 7 pores; it originates on each side 

 of the forehead, distant about an eye-diameter from behind 

 the eyes, extending backwards towards the nape, where it 

 meets a transverse, shorter series of pores, mostly 3, on 

 either side. On the opercles. there is a vertical series of 

 about b' pores. Finally a» series, as a rule difficult to dis- 

 tinguish, extends backwards from the upper extremity of the 

 gill-opening, a short distance under the dorsal; the space 

 between these pores varies in extent, but is always consid- 

 erably greater than that between the pores in the lateral 

 line. The series terminates a little posterior to the middle 

 of the body. 



Colour, in all specimens a uniform dark reddish-grey 

 or brownish-grey, without a trace of bauds or spots in any 

 stage of development. Scales considerably lighter than, the 

 ground-colour.- The younger individuals are somewhat 

 lighter than the older, and have the dorsal and anal of a 

 brownish-red. The under surface is but very little lighter 

 than the upper; in the young specimens the bluish-black 

 ventral membrane is translucent. The under surface of 

 the head alone is somewhat lighter than the rest of the 

 body; margin of vent whitish. Gape white. The action 

 of spirits causes the colour to fade. 



Tin- generative organs were quiescent. The largest 

 individual (p) (a male) had the right testis only developed; 

 the left was rudimentary, and about half an inch in length. 



