94 Dr. R. G. Alexander's Excursions in Upper Styria. 



of Ladakh and Bis-ahar, in the Himalayas, at an elevation of 

 17,000 feet above the level of the sea. 



Strophalosia and Productus are placed in the synoptical table 

 in a family distinct from that of Strophomenidce, because from all 

 the genera of the latter they are distinguished by the form of 

 their ovarian spaces and the presence of spines. In the former 

 character some of the Strophomenas (#. transver sails, S. oblong a, 

 &c.) appear to approximate them ; and in the latter they are assi- 

 milated to a certain extent by Chonetes. 



XII. — Excursions in Upper Styria, 1842. 

 By R. C. Alexander, M.D.* 



On the 2nd of July I visited the romantic ravine between Arzberg 

 and Gutenberg, and found Pyrola media, Saxifraga elatior (M. 

 and K.), Aizoon, rotundifolia, Sedum dasyphyllum, Rhododendron 

 hirsutum, Athamanta cretensis, Teucrium montanum, Scrophularia 

 canina, Euonymus latifolius, Dianthus plumarius, Hieracium inci- 

 sum, Mcehringia Ponce, Pelt aria alliacea, Arenaria laricifolia. 



On the 7th of July I was on the Schockel, a mountain above 

 5000 English feet high, near Gratz, and found Ranunculus al- 

 pestris and aconitifolius, Hieracium villosum, Botrychium lunaria, 

 Saxifraga controversa, Soldanella alpina in fruit, Spergula sagi- 

 noides, Anthemis tinctoria, but was prevented by heavy rain from 

 continuing on the mountain. 



On the 15th of July I was on the Lantsch, and found Astra- 

 galus Cicer, Mcehringia heterophylla, Koch (diversifol. Doll.), Me- 

 lica ciliata, Sambucus racemosa, Myagrum paniculatum, Semper- 

 vivum hirtum, Androsace lactea, Aronicum Clusii, Carex atrata 

 and firma. Chrysanthemum corymbosum, Cotoneaster vulgaris, Cen- 

 taur ea montana, Cortusa Matthioli, Carduus personata, Dry as oc- 

 topetala, Geum rivale, Gymnadenia conopsea var. minor, Lonicera 

 nigra, Orchis globosa, Ribes alpinum, Sonchus alpinus, Silene acau- 



than the length in the proportion of six to five. [The specimens examined 

 are 1£ in. wide and \\ in. long.] Upper valve convex, the convexity, which 

 is greatest over the cardinal line, equal to one-third of the width of the 

 shell : opposite valve concave, the concavity equal to half of the convexity 

 of the upper valve. Umbone rounded, slightly prominent. Area : length 

 equal to half the width of the shell, depth equal to one-sixth of its own 

 length. Deltidium, the base one-third the length of its side. Spines of the 

 dorsal valve adpressed, none exceeding a quarter of an inch in length, di- 

 stant from each by a space equal to twice their diameter (which is the six- 

 teenth of an inch in the largest spines) : spines of the ventral valve (speci- 

 mens imperfect in this particular). — Internal Characters (unknown). The 

 formation to which this species belongs has not yet been ascertained : one 

 of my specimens is associated with a Fenestella. It is from the crest of a pass 

 near the boundary of Ladah and Bisahar at an elevation of 17,000 feet. 

 * Head before the Botanical Society of Edinburgh, April 9th, 1846. 



