78 Description of Genera and Species. 



Remarks. — The specimens that were used by me for the above description and 

 figures were collected by the late Mr. Andrew Patton, the manager of the Calderwood 

 Cement Works, east of Kilbride, in Lanarkshire, and formed part of the collection of 

 the late Mr. James Coutts, of Glasgow, who kindly let me have the use of them for study, 

 and after whom I propose to name the species. At Mr. Coutts' death some of them 

 were acquired by the Royal Scottish Museum and are in that collection, and others were 

 bought by the late Dr. Hunter, Selkirk, whose collection was willed to the Museum of 

 Kilmarnock, Ayrshire. They are embedded in a fine calcareous shale, and are in a very 

 good state of preservation. An attempt at restoration of the parts observed, magnified 

 about two diameters, is given in fig. 7. 



Locality. — Cementstone Quarry, East Kilbride, Lanarkshire. 



Horizon. — Lower Limestones, (Scottish) Carboniferous Limestone Series. 



Collector. — ^ Andrew Patton. 



Crangcipsis robusta sp. nov. PI. XIL, figs. 8-12. 



Specific Characters. — Small, stoutly-built, shrimp-like form 15-20 mm. in length. 

 Carapace less than one-third of the length of body ; not much hollowed out behind, and 

 with either no rostrum or only a very inconspicuous one. Epimera of first tail segments 

 larger than usual, and only partly overlapped by the wings of the carapace, and with 

 posterior margins overlapping on to epimera of second segment. Telson much shorter 

 than uropods. 



General Description. — This is another shrimp-like organism, laterally flattened, and 

 fossilising sideways. It is small, measuring from 15-20 mm., and that this is the size 

 of adults is shown by one of the specimens carrying an ovisac distended with ova (fig. 8). 

 The carapace, seen doubled and in side view, is of the usual triangular or roughly rhom- 

 boidal shape, being much deeper behind than before. It is short and plain, and with only 

 the narrow thickened border for ornament. No rostrum has been observed, although there 

 is the projection formed of a flap over the eyes, which are moderately large. As seen in 

 fig. 1, the last body segment forms a complete ring, and the penultimate segment retains 

 a portion of its dorsal covering. 



The tail is of the usual fusiform shape and tapers back from the second joint. The 

 last segment is markedly the longest. All the segments are strong and well put together, 

 being well facetted for rolling and provided with epimera, which are not so deep 

 proportionately as in most of the other species. As already mentioned, those of the first 

 segment are larger than usual, being rounded and produced forward in front as well as 



