petroscirtes

[Pref. petro-, and Gr. skirt aō Ichthy.: A genus of Blenniidse, with thirty species of small size, from the tropical Indo-Pacific. Body moderately elongate, naked; a single dorsal fin; ventrals of two or three rays; a single series of immovable teeth in the jaws, with a strong curved behind, stronger in lower than in upper jaw. Tentacles sometimes present; gill-opening reduced to a small fi ure above root of pectoral. pět-rō-se-li-năm, s. [Lat., from Gr. petroseli non -rock-parsley; formerly a genus of Umbellifers.] Bot.: A section or sub-genus of Carum, containing two common species, Carum segetum , and C. pet rose linum (garden parsley), the latter the typical one. [PARSLEY.] pět-ro-si-dër-ite, s. [Pref. petro-, and English siderite.] Min.: A granular mixture of magnetic iron or ilmenite with felspar. Found in Strombe, Faroe Islands. pět-ro-si-lěx, s. [Pref. petro-, and Lat. silex = a flint-stone.] Petrol.: The same as FELSTONE (q. v.).