442 Rev. Canon Norman — A Month on 



the Anomia puhescens of Gmelin is the same thing-." 

 If we turn to Gmelin, Linn. Syst. Nat., edit, xiii., 

 we find that the name Anomia jjuhescens is given 

 to a shell on which Miiller (Zool. Dan. Prod. 1776, 

 no. 3007) thus writes : — " TerehratuJa puhescens 

 testa tomentosa, subquadrangulari, longitudinaliter 

 striata, tomentum non omnes gequaliter vestit, spon- 

 giamqne parasiticani suspicor ; " and Gmelin's own 

 observations are " testa pilis brevissimis erectis 

 distantibus, an forsan a Spongias specie adherente ? 

 hirta." The suggestion of these two old writers 

 was the true one, while modern writers like Gould 

 and Davidson have mistaken this hispid coating of 

 sponge for an epidermis ! But it must not be sup- 

 posed that the hispid coating is due to one particular 

 species of sponge. Two such are described by Bower- 

 bank — Alicrociona Icevi's, Bow. (Brit. Spong. vol. iii. 

 pi. xxiii. figs. 7-11), and Halichondria olhula^ Bow. 

 (vol. iii. pi. xlv. figs. 21-24). I have now taken 

 three specimens at random procured at Rodberg and 

 examined the hispid covering ; all looked alike to 

 the naked eye, but each shell had on it a sponge 

 not only specifically but generically distinct from 

 the others, and none of them belonging to either of 

 the species found on Terehratulina by Bowerbank*. 

 Fischer and ffihlert give the same solution of the 

 " epidermis," having found an incrusting sponge on 

 their specimens which is yet another species, Suh- 

 erites capillih'icm, Topsent. It would seem that the 

 slightly roughened shell, combined probably with 

 the advantage afforded in the way of nutriment 

 brought by the currents of water which the Bra- 

 chiopods set in motion, serve to make Terehratulina 

 a friend highly esteemed among the Spongozoa. 



2. Waldheimia septigera^ Loven. 



This fine species is not rare at some spots near Rodberg ; 

 but I only myself found one living specimen on the preci- 

 pices on the west side of the fiord at a great depth, probably 

 oOO fathoms. I have also dredged it at a nearly similar 

 depth off Batalden, near Floro. The Rodberg specimens 

 are, however, larger than any I have seen from other places, 



* One of the three is Myxilla amhigua. Bow. {=Microcimia ambigua, 

 Bow.). This is Hastatus ambiyuus, Fristedt, who also found it incrusting 

 Terehratulina. 



