"^'iSi!^,i:t" ^MMm in the Uni.

154 MOLLUSCA.
and Helix fulvida, Pfr., is only a small variety of it. The sexual apparatus
and the dentition of both species described and figured pi 4. figs. 7 & 15,
pi 7. fig. 14; the animal of the second pi 1. fig. 2.—R. globosa, sp. n., known
only from the shell, pi. 2. fig. 3, Mindanao.—R. semigranosa, Sowerby, is
identical with panayensis, Pfr., and Pfeiffer's semigranosa is another species,
called R. moussoni by C. Semper.
c. Shell hairy. R. gummata, Sow., sexual apparatus as in the preceding,
the six outermost lateral teeth of the radula tricuspidate (pi 6. fig. 32); R.
setigcra, Pfr., sexual apparatus not known, lateral teeth unicuspidate (pi. 6.
fig. 33) : both from Luzon.—R. striatula, sp. n., known only from the shell,
pi. 2. fig. 4, province Ylocos, Luzon.
Sixteen other Philippine species, known only from the shell, are enumerated,
and for the most of them new and exact localities given. Semper, I. c.
pp. 08-77.
Rhysota chambertinii, Tryon, 1869, = Helix hauqldoni, Bens. 1863. Stoliczka,
P. As. Soc. Beng. 1870, p."87.
Helix (Hemiplecta) fordii, sp. n., Brazier, P. Z. S. 1870, p. 662, Tasmania.
Macrochlamys, Bens. This name is limited by C. Semper, as proposed by
Adams and by the Recorder, to the species of Nanina the shell of which is
smooth and shining both on its upper and under surface. Two long tongueshaped
shell-lobes; the left cervical lobe divided into two. Anatomical
particulars as in Eup.'ccta, described and figured from M. sphndens, Button,
Calcutta, pi. 5. fig. 10, and honesta, Gould, Andaman Islands, pi. 5. fig. 20.
To this genus are referred :—M. ? cvebvostviatus, sp. n., pi. 2. fig. 6, Basilan and
Zamboanga; M. ? henrici, O. Semper, MS., sp. n., pi. 2. fig. 5, Northern
part of Luzon : both known only from the shell. Semper, I. c. pp. 17-19.
Nanina (Macrochlamys) geqfrcyi, H. Adams. The living animal described
by G. Nevill. J. A. S. B. xxxix. p. 406.
Macvochlamys cutteri, sp. n., II. Adams, P. Z. S. 1870, p. 794, Sarawak.
Orobia andamanensis, Tryon, 1869, = Helix exul, Theobald, 1864, and perhaps
also = //. stcphus, Bens. Stoliczka, /. c. 1870, p. 87.
Euplccta, gen. nov. Cervical lobes of the mantle developed, the left subdivided
into two; shell-lobes rudimentary. Shell external, striated or ribbed
above. A cylindrical appendicular gland in the female sexual apparatus,
with a rudimentary analogue of the sagitta. This genus is founded on Helix
subopaea, Pfr., and II. layardi, Pfr., the anatomical particulars of which are
described and figured, pi. 3. figs. 3 & 4, pi. 6. figs. 19 & 20. The following
species, known only from the shells, are placed here with doubt -.—Helix
boholensis, Vh:,fi/ocincta, Pfr., ovthostoma, Pfr., biangulata, Pfr., armida, Pfr.;
E. rotundata and bicavinata, spp. nn.; the last only figured, pi. 2. fig. 8. Semper,
/. c. pp. 14-10.
Euvypus ', n. g., type Helix casca, Gould, Fiji Islands. Foot with the bock
broad, not carinated ; genital apparatus as in Helicarion; E. similis, sp. n.
pi. 2. fig. 14, Fiji I-lands. The animals observed from specimens in spirits ;
the f/emtal apparatus, jaw, and radula of both described and figured, pi. 1. figs.
12 & IK, pi.:;. «,,. 10, pi. 0. fipi io & U. Semper, I. c. pp. 36, 37.
Xiuina fragi/lima, sp. n., Fiji Mands. Allied to casca. Mousson, J. de
( onel). xvui. p. 112, pi. 7. fig. :;.
Marti-nsia, gen. nov., type Helix mossambicenm, Pfr. The shell-lobe of
Preoccupied in Coleoptera.