. Bulletin. Geology -- Connecticut; Animals -- Connecticut; Plants -- Connecticut. 7o CONNECTICUT GEOL. AND NAT. HIST. SURVEY [Bull. while in other species they are more or less completely covered by the more superficial scales of the disk (Plates XIII and XIV).. Fig. 9. Oral surface of disk and bases of arms of Ophiopholis aculeate; a, adoral plate; d, disk, with small, blunt spines covering the plates; e, tentacle scale; g, genital slit; m, madreporic plate (modified oral shield); 0, oral shield; p, oral papillae; s, arm spine; t, tooth; u, under arm plate. Arm plates.— The arms are covered
. Bulletin. Geology -- Connecticut; Animals -- Connecticut; Plants -- Connecticut. 7o CONNECTICUT GEOL. AND NAT. HIST. SURVEY [Bull. while in other species they are more or less completely covered by the more superficial scales of the disk (Plates XIII and XIV).. Fig. 9. Oral surface of disk and bases of arms of Ophiopholis aculeate; a, adoral plate; d, disk, with small, blunt spines covering the plates; e, tentacle scale; g, genital slit; m, madreporic plate (modified oral shield); 0, oral shield; p, oral papillae; s, arm spine; t, tooth; u, under arm plate. Arm plates.— The arms are covered on all sides by a com- plicated system of thin plates and spines. The form, number, and arrangement of these parts are used in the classification of the group, so that one must examine them closely in order to determine the name of any one of our native species. A single row of plates, the upper arm plates, usually lies along the aboral surface of each arm; and a similar row, the under arm plates, often with plates of different size, occupies a similar position on the oral surface (Fig. 9). Beside these upper and under arm plates, and occupying more or less of the lateral surfaces of the arm, often occur one or more series of smaller plates, and these. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original State Geological and Natural History Survey of Connecticut. [Hartford] : The Survey
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