1090 
BULLETIN OE THE UNITED STATES FISH COMMISSION. 
L. 'Agassiz (Prodrome d’une Monographie des Radiares ou Echinodermes, Mem. Soc. Sci. Nat. 
Neuchatel, t. 1, 1835, p. 191) wrote as follows: 
Linckia Nardo . — Cribrella Ag. Msc.— Corps 6toil6; rayons tuberculeux et allonges; peau poreuse dans les intervalles. 
L. variolata. N. (Asterias variol. Lam.)— L. Ti/pus N. — L. Franciscus N. Les especes diJerites par Goldf. sous les noms 
d'Asterias arenicola et abtusa, semblent devoir former un genre a part que l’on pourrait nommer PLeuraster. Je ne 
les connais cependent pas assez pour en decider. 
It is very evident that Linckia and Cribrella were the same in Agassiz’s mind. In other words, 
Cribrella must be treated as a substitute name for Linckia Nardo, and since Cribrella is based on 
Linckia the type of Linckia is the type of Cribrella. If Linckia should become invalidated, Cribrella 
could replace it; otherwise Cribrella can never have any standing other than as a synonym of Linckia. 
Even if none of the species given above were congeneric with Linckia of Nardo [but L. typus is the 
type of Linckia ] , or even if it could be proved that Agassiz never saw a specimen of true Linckia, the 
case would not be altered. If a writer bases one genus upon another intentionally or unintentionally, 
the type of the old genus becomes ‘ipso facto the type of the new one. 
It appears, therefore, that Forbes’s appropriation of the name Cribrella for the group previously 
named Henricia by Gray has no justification. Cribrella, as a matter of fact, has nothing to do with 
this group. It is simply a synonym of Linckia. . Canon Norman (Ann. N. H., ser. 6, vol. vii, p. 382) 
contends that “Agassiz first used the name; that Forbes more accurately defined the genus.” Agassiz 
left no doubt as to what he meant by Cribrella, so that Forbes did not better matters by transferring 
the name to another and previously named genus. 
Key to Hawaiian species of Henricia. 
a. Rays short and thick robusta 
b. Rays long and slender pauperrima 
Henricia robusta, new species. 
PI. xxxv, figs. 1, 2; pi. xxxvin, figs. 2, 2a. 
Rays 5. R=31 mm.; r=6 mm. R=5 r. Breadth of ray at widest part, near base, 8-9 mm. 
Rays unequal, the shortest with R=26 mm. 
Rays short and stout, swollen at base, and thence tapering to a blunt extremity which is recurved. 
The whole animal is slightly depressed, so that the rays are not cylindrical except near tip, but are 
rather elliptical in section, and are constricted next to disk, a shallow sulcus running part way toward 
center of disk from each interradial angle. The disk appears rather small in consequence. 
Plates of the abactinal surface are very small, and are so arranged as to form an open network, 
inclosing fairly large, irregular papular areas. These plates are crowded with groups of 3-8 minute, 
delicate, slender, short, cylindrical, often slightly tapering, spiculiform spinelets. There is no constant 
arrangement of these spinelets, although occasionally a biserial grouping is discoverable. Often they 
form an irregular circular group. The papular areas, which are sunken considerably, are often broken 
up by isolated plates, or 2 or 3 plates together, bearing tufts of spicules. 
Low on the lateral wall, which is rounded, is a narrow, rather irregular longitudinal line, which 
rises toward interbrachial angle. This is composed of longitudinally disposed plates a trifle larger 
than the others, each crowned with 14 or 15 of the slender spinelets. Below this series is a similar 
line of smaller, transversely disposed plates, which is succeeded by still another longitudinal series, 
with long axis of plates likewise transverse. These bear about 15 spinelets disposed in 2 or 3 irregular 
transverse rows. The first series, which has been considered the superomarginal, is slightly more 
conspicuous than the lower (inferomarginal) because its plates are nearer together, being placed end 
to end. Between superomarginals and adambulacrals the plates are arranged in definite transverse 
series, except at very base of the ray, where there is irregularity. Between the inferoi-narginals and 
adambulacrals one can count 5 or 6 plates to each transverse series at base of ray. These are reduced 
to 2 at the end of the proximal third of rav, and to 1 at about the middle. The single longitudinal 
series of intermediate plates continues for two-thirds to three-fourths the length of the ray. These 
actinal plates are beset with slender spinelets like those of the dorsal plates. In some cases a delicate 
web can be distinguished uniting the basal half of several adjacent spinelets. 
Armature of adambulacral plates as follows: (1) A short compressed spinelet placed high up on 
side of furrow. (2) On actinal surface of plates at base of ray, 3 or 4 larger, cylindrical, slightly taper- 
