. An account of the alcyonarians collected by the Royal Indian marine survey ship Investigator in the Indian Ocean. Alcyonaria. Fig. 60. Tip of branch of Sipho- nogorgia palmata, u. sp., x 4. Fig. 61. Polyp of Siphonogorgia palmata, u. sp., x 25. tive opercular armature. There is a very definite "crown" or collar composed of eight to ten rows of curved interlocking spindles which diminish in size to- wards the stomodoeal region ; surmounting this ai*e eight well-marked " points," each of which consists essentially of two very large unequal bent spindles touch- ing on their


. An account of the alcyonarians collected by the Royal Indian marine survey ship Investigator in the Indian Ocean. Alcyonaria. Fig. 60. Tip of branch of Sipho- nogorgia palmata, u. sp., x 4. Fig. 61. Polyp of Siphonogorgia palmata, u. sp., x 25. tive opercular armature. There is a very definite "crown" or collar composed of eight to ten rows of curved interlocking spindles which diminish in size to- wards the stomodoeal region ; surmounting this ai*e eight well-marked " points," each of which consists essentially of two very large unequal bent spindles touch- ing on their convex sides for the upper half but diverging at the base. Between these there may be one or two small spindles, while between the points one sometimes finds a pair of spicules. Thus there may l)e an approach to Hick- son's " fan-arrangement". The colour is orange-yellow liut the anthocodi:* have a deeper orange tint while others are red. Locality : Andamans. Siphonogorgia annectens, n. sp. This species is represented by a small dull-red compact colony, 4 cm. high and 4 cm. in maximum breadth, composed of a flattened basal expansion 3 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 Thomson, J. Arthur (John Arthur), 1861-1933; Investigator (Ship); Indian Museum; Henderson, W. D. (William Dawson). Calcutta, Printed by order of the Trustees of the Indian Museum


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