Fig. 3. Another larva in which the first pair of appendages, those of the peristome, have lost their chætæ, and are developing as tentacles. Prostomial tentacles and anal cerci appearing. Flagella present. Two pairs of eyes on the peristomium in addition to the pair on the prostomium. Length, 0.98 mm. Fig. 4. An older larva. Length, 1.08 mm. Fig. 5. Ventral surface of head of specimen figured in fig. 4, but drawn twenty-four hours later. In the second segment the notopodium is tentacle-like, while the neuropodium still bears chætæ. Fig. 6. Dorsal view of the head of the same specimen after another twentyfour hours. The prostomial eyes have disappeared.

Art. XXIII.—Description of a New Species of Veronica (Linn.). By D. Petrie, M.A. [Read before the Auckland Institute, 28th August, 1907.] Veronica Astoni, sp. nov. V. Veronicœ tetragonœ (Hook.) simillima, humilior (2–3 dcm. alta), gracilior, arctissime ramosa. Rami ultimi gracillimi, valde conferti perobscure aut nequaquam tetragoni. Folia arcte quadrifariam imbricata, paribus oppositis basi connatis, 1 ½ mm. longa, basi æque lata, subtriangulata, tumida, valde obtusa et apice rotundata, dorso haud carinata, superne late concava; juniora margine subciliata, pr v ctiora glaberrima. Flores pauci, parvi, in apicibus ramulorum subsessiles, circa 3 mm. lati, floribus V. tetragonœ (Hook.) simillimi, sed omni a parte minores. Fructus adhuc ignotus. Crescit in scopulosis jugis Montis Hector apud Tararua Montes in insula boreali Novæ-Zelandiæ. Floret in mensibus Januario et Februario. The present species of Veronica is closely allied to V. tetragona (Hook.), but differs constantly in a number of characters, as set forth above. Its habit of growth s very distinct, as it forms low dense rounded or flattened bushes, with branchlets so closely compacted as to be almost touching. The older stems are round, glabrous, and marked by very numerous shallow transverse scars formed by the leaf-traces. The top 2 in. give off great numbers of short branchlets, many of which branch again. Nearly all the slender branchlets fall away in age, so that the main branches show but little bifurcation.