410 THE VOYAGE OF H.M.S. CHALLENGEE. 



Olivier in 1791 for a genus of the Arachnida, and by Bolten in 1798 for a group of Pijrula and 

 Purpura. Link's name cannot therefore be maintained. 



Montfort then, in 1810, b as priority with his name Morio, but Latreille used that name in the 

 same year, and, as I believe, with acceptance, for a group of Coleoptera. 



It is thus satisfactory to have so good a reason for retaining the very generally received name 

 proposed by Lamarck, a name which has the further advantage of suggesting its own place in 

 classification. 



Cassidaria (Sconsia) striata, Lamarck. 



. Cassidaria striata, Lamarck, Anim. s. vert., vol. vii. p. 216, and (ed. Desh.) vol. x. p. 10, sp. 4. 

 „ „ Kiener, Iconog., p. 6, sp. 3, pi. ii. fig. 3. 



,, „ Deshayes, Encycl. method., vers, vol. ii. p. 208, sp. 1, pi. ccccv. fig. 2. j 



„ ,, Reeve, Conch. Icon., vol. v. pi. i. fig. 3 (not 2). 



„ ,, Kiister, Conch. Cab. (ed. Kiister), Cassis, &c, p. 52, pi. lv. figs. 1, 2. 



„ Chenu, Manuel, vol. i. p. 208, fig. 1138. 



Station 122. September 10, 1873. Lat. 9° 5' S., long. 34° 50' W. Off Pernambuco. 

 350 fathoms. Red mud. 



Habitat. — Unknown. 



3. Oniscia, Sowerby, 1 1825. 

 Oniscia cithara, Watson (PI. XXXIV. fig. 6). 



Oniscia cithara, Watson, Prelim. Report, pt. 7, Journ. Linn. Soc. Lond., vol. xv. p. 266. ]j 



Station 192. September 26, 1874. Lat. 5° 49' 15" S., long. 132° 14' 15" E. Ki 

 Islands, west of Papua. 140 fathoms. Blue mud. 



Shell. — Harp-shaped, being narrow below aud broadish above ; it has a somewhat 

 raised and sharp-pointed apex, and is scored by many mucronated ribs and broad low 

 spirals. Sculpture : Longitudinals — on the last whorl (but the shell is not quite adult) 

 are 17 rather low, flexuous, narrowish, rounded ribs which are slightly crested on their 

 front side ; they are a little concave above, almost straight or very faintly convex for the 

 most of their course, and retreat rather strongly so as to become horizontal as they die out 

 on the pillar ; they are parted by shallow flat furrows of unequal breadth, but greater than 

 that of the ribs ; over the whole surface, but especially in the furrows, are sharp pucker- 

 iugs with finer folds between, and close-set, sharp, almost microscopic strise in the Hues of 

 growth ; on the upper whorls the ribs are fewer and sharper. Spirals — on the last whorl 

 there are 13 broad, low, squarish, raised bands, which are narrower and sharper on the 

 snout : the first is at the suture ; the second, a little remote, is narrower, but sharper than 

 the rest ; this and the third rise on the longitudinal ribs to high, narrow, sharp spikes 



1 I do not feel called on to disturb this well-known name in favour either of Lambklium, Link, 1 807, or of 

 Moruni, Eolten, 1798. 



