SOLEN.

Testa valvulis utrinque hiantibus. Cardo dente unico inflexo recurvo.

The Mya lutraria, M. vulsella, and Pholas crispatus were originally included in this genus.

S. vagina. S. linearis rectus, cardinibus unidentatis.

"Habitat in Indiæ littoribus arenosis: in mari Rubro (Hasselquist)" was the recorded locality in the MS., where the European shell delineated by Gualtieri was not then included: "Klein, 163. t. 11. f. 65" (a copy from the cited figure of Rumphius) was its substitute.

S. siliqua. S. linearis rectus, cardine altero bidentato.

The wretched drawings of Argenville were not quoted; but "Bonan. 2. f. 56" (error for 57), "Plane. t. 3. f. 6," and "List. Ang. 192. t. 5. f. 37," were cited instead.

S. ensis. S. linearis subarcuatus, cardine altero bidentato.

The final remark was not in the MS.

S. cultellus. S. ovali-oblongus curvatus.

"Habitat in Amboinæ littoribus arenosis" is an addition of the MS. The intended name (derived from Rumphius) was cultriformis.

S. radiatus. S. ovalis, cardinis costa tereti.

"Habitat in littoribus arenosis Xulii(?) Amboinæ" is an addition to the published account. The intended specific name was violaceus, an appellation bestowed upon it by Rumphius: "solida" was an emendation.

S. strigilatus. S. ovalis, oblique striatus.

"Bonan. 2. f. 76" (error for 77) was an unpublished synonym.

S. anatinus. S. ovatus membranaceus, costa falcata.

Rostrum anatis was the intended name.