APPENDIX. 3o7 
SoLEN CYLINDRACEUS (t. 12, f. 41), Hanl. Z. P. 1843, p. 101. 
Linear, straight, cylindraceous, moderately strong, white varied with 
purplish red; the epidermis slight; six times as broad as long; tip 
of the longer side obtusely rounded, of the shorter side abrupt and 
concave: hinge terminal, a projecting somewhat crescent-shaped 
tooth im each valve. 4...3. Between S. linearis and S. brevis. The 
colouring, in adult examples, is almost confined to the posterior 
portion. 
SoLEN PHILIppiInaRuM (t. 12, f. 42), Hanl. Z. P. 1848, p. 101. 
Linear, convex, thick, subarcuated, five times as broad as long, dull 
yellowish white, covered by a wrinkled dull yellowish olive skin; 
front extremity convex, hinder extremity blunt; beaks placed at the 
fourth fifth of the total breadth; a sharp, strong and prominent 
tooth in each valve. 1...5. Nearly allied to S. ambiguus, but more 
curved, and devoid of coloured rays. Its breadth is equal throughout ; 
the umbones are much flattened. 
Glauconome Chinensis, p. 17, t. 10, f. 17. 
GLAUCONOME RuGOSA (t. 10, f. 24).—Reeve, Z. P. 1844, p. 19; 
I. Glauc. f. 4.— Desh. Vener. 208.— G. Cutnensis, Del. t. 19. f. 5. 
Transversely elongated-oblong, rather more than twice as broad as 
long, very inequilateral, subventricose, not very thin, white, or 
greenish, beneath a glossy greenish yellow skin, which is puckered 
into longitudinal wrinkles in the middle, and concentrically corru- 
gated at the sides; ventral edge rising obliquely behind; front side 
tapering gradually both above and below to a blunt tip, gaping; 
hinder extremity unsymmetrically rounded; umbones much eroded : 
inside wholly white. 12...33;. Manilla. 
G. curta, Hanl. t. 14, f. 41.—Reeve, Z. P. 1844, p. 20; I. Glauc. 
Ff. 7.—Desh. Vener. p. 203. Oval, not very inequilateral, thin, sub- 
ventricose ; cuticle glossy asparagus-green, smooth or finely wrinkled 
concentrically ; ventral margin convex ; both ends rounded, the front 
one rather bluntly so, neither of them attenuated ; hinder side filing 
two-fifths of the entire breadth: umbones eroded; inside stained 
with purple; teeth small; pallial sinus short. 4...11. Philippines. 
Solenella Norrisii, p. 17, t. 10, f. 8. The genus should be placed 
next to Nucula. 
On Panopma (p. 18). Consult the monograph by Valenciennes 
(Archiv. de Musee, vol. 1); his P. Spengleri (identical with our 
arctica) must resume the earlier appellation (Norwegica) bestowed 
upon it by Spengler (Skriv. Nat.). See, too, P. Antarctica and generosa 
of Gould (Pr. Bost. vol. 3). 
P. Aelanica, p. 18, t. 9, f. 59... P. Australis, p. 18, t. 9, f. 24... 
P. Norwegica (as aretica, p. 18, t. 10, f. 42). 
Pholadomya candida, p. 18, t. 9, f. 57. Middendortf refers the 
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