Mr. G. B. Sowerby on Hinnites. 71 



Testa oblonga, extus pallide brunnea, confertim radiato-suU 

 cata; extus alba, margine cardinali purpurea; long. 4. poll. Alt. 

 5 poll. 



" Shell oblong, rather thick, solid, outside pale brown, orna- 

 mented with numerous small rays; the left valve the most con- 

 vex; the inside white, with the hinge margin fine dark purple, 

 the area left by the moving forward of the ligament is also purple, 

 and rather narrow, the groove for the elastic cartilage is very large 

 and distinct in each of the valves and quite open, it is extended 

 the whole length of the facet and considerably produced into the 

 cavity of the shell. The muscular impressions are large and the 

 submarginal is orbicular ovate with a considerable inQexion just 

 even with the anterior ear. The length is four inches and the 

 height from hinge to basal edge five inches." Gray in loc. cit. 



4.. Hinnites corallinus. 



Testi valde irregulari, extus corallino-rubra, valvi superiore 

 radiatim costellata, costcllis muricato-subasperis ; intus pallide 

 subfusca, marginibus basalibus sordide purpureis ; long, et Alt. 

 subasqualibus. 



Shell very irregular, outside of a fine coral red, upper valve 

 with small radiating ribs, here and there niuricated : inside pale 

 subfuscous, basal margins dull purple: muscular impression having 

 the appearance of a horny substance veined with the same as the 

 other parts of the inside, its lower edges variegated w ith pale dull 

 purple: inside composed of a distinctly facetted crystalline sub- 

 stance, with occasional black coriaceous spots near the edges. 

 Lower valve paler in colour than the upper ; very rough with the 

 irregularities of the sandstone rock on which it has been placed. 



The only specimen I have seen is in the collection of the Rev. 

 Dr. Goodall ; it was brought to England lately, from the eastern 

 coast of Africa. Some Serpulw and a Balanus arc attached to it. 



5. Hinnites Pusio. Pecten Pusio. > .. 



distortus. 



Test^ oblonga, tenui, confertim radiato-striatii, striis scabris ; 

 auriculis inaequalibus, radiatim scabris : valv^ inferiore subtus, 



