14 JAMKS A. GRIEG. [SEC. ARC.T. EXP.FRAM 



Tin- largest specimens found l>y the Fram Expedition are up to 

 41 nun. long. \'>\ way uf comparison it may he stated that on the west 

 cn.-ist of (Ireenland this species attains a sixe of 36 nun. (PosSELT), on 

 tin- ea-t coa-t it can he 36 25 nun. (JENSEN) at Spitzhergen 45.5 nun. 

 i KMI'OWITSCIII ami in the Uering Sea 51 mm. (KRAUSE). Some of the 

 largest specimens measure: 



<iaa-e|ord Long. 11 mm. Lat. 27 mm. Crass. 14.5 mm. 



38.5 .. 207 ,. I 5 .. 



Forvisningsdalen 37.5 .. 28 .. 13 



(.aasefjord 37.2 .. 24.5 .. 13 



33.5 .. 24 ; . 10.5 .. 



32.r> .. 25 10.5 .. 



Stunlalen 31 .. 21.5 ,. 11.5 .. 



27.2 .. 20 r 11.2 .. 



Some of the specimens are characterised hy their narrow and elon- 

 gated form. The posterior end of the shell tapers comparatively sharply. 

 Thi> form is most frequently met with in specimens from the head of 

 tin- (laaseljord. On the other hand there are several specimens which 

 have a remarkahly high shell. The most characteristic feature in their 

 case, however, is that the posterior end of the shell is more ohtnx-lv 

 rounded, so that the shell's form reminds one of tdlina torelli. In the 

 illustrations I have shown the two most pronounced instances of these 

 form>: the 41 mm. specimen from the head of the Gaasefjord (Fig. 2), 

 and the 37.5 mm. specimen from Forvisningsdalen (Fig. 3). Between 

 these extreme forms there are scarcely distinguishable intermediate forms. 



Tel I inn. imicoma, torelli, I A p. STEENSTRUP. 



Loca I i t y: 



Sept -2 IMCI. T|,,. winlrr hiirl.our. IIu\m-lj.)r.l. If. in. 



M.iivli 7. I'.MIIt. l!;iy ^milli of Sjopnlse Nes--. Il.ivnrljnnl. 30 40 m. Small slomv- 

 slightly nvcrj;ro\vii with laiiun;in;i. 



I'ln- two largol s|ecimens measure: 



Lmig. 14 mm. Lai. 10.5 mm. (lras>. 5.7 mm. 

 13.7 10.5 5.5 







Tln-r .specimens are thus slightly larger than the higgesl living 

 specimens \\hich JK.\SI;\ has investigated (135 mm.). Their lorni is 

 alm>-l exactly similar to Hie lo-sil shells from Yeiidsvssel which he 

 has depicted (tali. 1. lig. .'! /' /I. 



