Fig. 
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MUSEUM OF COMPARATIVE ZOOLOGY. 67 
EXPLANATION OF PLATES. 
PLATE I. 
1. Distichoptilum gracile V. Stem and lower part of rachis, seen edgewise. 
Enlarged 13 times. 
la. The same. Terminal portion. Enlarged 2 diameters. 
1b. The same. Spicula: c, one of the larger oblong forms from a, calicle; 
d, two from the stalk. Enlarged 75 diameters. 
2. Pennatula aculeata. Side view of a medium-sized specimen. Natural 
size. 
2a. The same. Two of the polyps expanded. Drawn from a living exam- 
ple. Enlarged about 6 diameters. 
8. Balticina Finmarchica. Front view of the lower part of the rachis of a 
small example, showing, below, the imperfectly developed polyps in 
nearly simple series. Enlarged 2 diameters. 
3a. The same. One of the mature polyps expanded. Drawn from a living 
example. Enlarged about 8 diameters. 
4. Funiculina armata VY. Portion of the middle of a large example. Natural 
size. 
4a. The same. One of the spicules of the calicles. Enlarged 75 diameters. 
4b. The same. Portion of a younger example. Natural size. 
5. Kophobelemnon scabrum V. Front view of the type-specimen, in alcohol. 
Enlarged 2 diameters. 
5a. The same. Back side. 
5b. The same. Two of the spicula from the upper part of the stem: d, one 
of the longer and nearly smooth prismatic spicula; e, one of the smaller 
warted spicula. Enlarged 150 diameters. 
5c. The same. One of the larger, warted fusiform spicula, from the same 
part. Enlarged 250 diameters. 
6. Anthoptilum grandiflorum VY. Portion showing two rows of polyps from 
the middle region, side view; a, a, zodids. Drawn from an alcoholic 
example. Natural size. 
7,8. Anthomastus grandiflorus V. Two small-sized examples, showing differ- 
ent forms of the peduncle and root-like lobes. Natural size. 
9. The same. A very young example, with expanded polyps, natural size. 
10. The same. A young example, with the polyps nearly retracted. Natu- 
ral size. 
10a. The same. Spicula from the outer part of the cenenchyma: ce, one of 
the longest warty fusiform spicula; d, one of the small rough double- 
heads. Enlarged 150 diameters. 
