REPORT ON THE HEXACTINL-E 5 



is of a broivn color, the tentacles being of the same color, while 

 the lips are usually yellowish or orange. Dr. Calkins' descrip- 

 tion of one of the members of this group is as follows : 

 *' Light brown with long feathery tentacles of still lighter color. 

 The extreme tips of the tentacles are white. The mouth parts 

 are almost an olive green " and the disk is " transparent from 

 mouth to margin." 



In a second group (II), the column is of an orange or salmon 

 color. Four representatives of this group occur in the collec- 

 tion : one of these Dr. Calkins describes as being of a •' bright 

 orange" color, and the other three as being "yellowish pink." 



The third group (HI) has but two representatives in the col- 

 lection and these are described by Dr. Calkins as being "pure 

 white." 



Size. — The specimens belonging to the brown variety are on 

 the whole smaller than the others. Some of them are, however, 

 considerably contracted, measuring, in this condition, 1.3- 1.5 

 cm. in height, the base being broadly expanded and measuring 

 1.8—3.5 in diameter, while at the upper part of the column the 

 diameter is only 1.3- 1.2 cm. One specimen, which was well 

 expanded measured 3 cm. in height and had a diameter at about 

 half way up the column of about 1.5 cm., while the base 

 measured about 2 cm. Another specimen, also well expanded 

 is about 4 cm. in height and about half way up the column has 

 a diameter of 2.3 cm. 



The specimens belonging to the orange variety have a greater 

 average size. Three specimens measured 2.3 cm., 1.5 cm., and 

 3.5 cm. in height, with a column diameter of 2.3 cm., 1.3 cm., 

 and 2.5 cm. respectively. Another specimen, taken at a depth 

 of 13.7 meters, was much larger, measuring in its present con- 

 dition, 12.5 cm. in height, the base having a diameter of 4.5 

 cm. and the column about its middle measuring 3.7 cm. in di- 

 ameter. These figures do not, however, represent the original 

 size of the specirnen, since Dr. Calkins states that soon after it 

 was placed in formalin its dimensions were " seven inches from 

 base to mouth, five inches across the crown and three inches in 

 diameter." 



