1866.] 103 [Hentz. G. Sanborn, Frank Stratton and S. H. Scudder of Boston and Wm. Saunders of London, C. W. Supplement to the Descriptions and Figures of the Aran-EiDES OF the United States. By the late Nicholas Marcellus Hentz. Some years since, Professor Hentz published in our Journal* an il-lustrated monograph of the Araneldes of the United States. The original drawings, with many appended notes, came by this means into the possession of the Society. Finding that many of the drawings of parts, and a few notes upon the structure and habits of this rather neglected group had been omitted, I have carefully gleaned whatever seemed to be of any importance, for publication in the Society's Pro-ceedings as an appendix to his Monograph. A few of the original drawings engraved on the plates in our Journal are unfortunately missing ; these are the ones figured on plates viii and xvii of Vol. iv. Herpyllus duhius is stated in the text to be fig-ured on plate xxiv, fig. 24 of Vol. v, but no such figure is there, and no drawing of that species can be found. All the others are in the Society's possession. It is worthy of remark in this connection, that the principal locali-ties from Avhich Professor Hentz obtained his Araneides were North-ampton, Mass., College Hill, N. C, and Tuscaloosa, Ala., and that when " the United States " is given as the habitat of a species, it simply means that he had specimens from Massachusetts, and from one of the southern localities. S. H. Scudder. Katadysas pumilus. The nails of the cheliceres cannot be op-posed to each other, but may perhaps nearly join at tip, as they may in Miff/ale. Taken in January. Doloraedes albineus. Fig. 73, eyes. The area of the eyes is black; thighs and breast all shining piceous underneath. Taken July 3. Dolomedes lanceolatus. Specimens from Alabama are larger than those from New England. Dolomedes sexpunctatus. Fig. 55, eyes. Legs immaculate and hairy, arranged 4, 2, 1, 3. Taken Feb. 28. Micro mmata carolinensis. The mandibles are very hairy at the top. 3-toothed ; feet arranged 2,1,4,3. Taken from April to December. * Boston Journal of Natural History, Vol. iv., pp. 54-7, 223-31, 386-96; pis. vii, viii, xvii-xix. Vol, v., pp. 189-202,352-70,443-79; pis. xvi, xvii, xxi-xxiv, xxx, xxxi. Vol. VI., pp. 18-35, 271-95; pis. iii, iv, ix, x. The numbers xvi, xxi-xxiv bave unfortunately been used twice in numbering the plates of Vol. v.