Ms
.2.

13<^~d<y3 8-

HARVARD UNIVERSITY.

LIBRARY

OF THE

MUSEUM OF COMPARATIVE ZOOLOGY

30O99

M

<As&~C^tsyv\

T U \J v \ - \

lllcmoirs of the |tluseum of €omp;u;ihut Zoology

AT HARVARD COLLEGE.

Vol. XXXV. No. 2.

REPORTS ON THE SCIENTIFIC RESULTS OF THE EXPEDITION TO THE
TROPICAL PACIFIC, IN CHARGE OF ALEXANDER AGASSIZ, BY THE
U.S. FISH COMMISSION STEAMER "ALBATROSS," FROM AUGUST,
1899, TO MARCH, 1900, COMMANDER JEFFERSON F. MOSER, U. S.. N.,
COMMANDING.

IX.

REPORTS ON THE SCIENTIFIC RESULTS OF THE EXPEDITION TO THE
EASTERN TROPICAL PACIFIC, IN CHARGE OF ALEXANDER AGASSIZ,
BY THE U. S. FISH COMMISSION STEAMER " ALBATROSS," FROM
OCTOBER, 1904, TO MARCH, 1905, LIEUT.-COMMANDER L. M. GARRETT,
U. S. N., COMMANDING.

X.

THE BRACHYURA.

By MARY J. KATHBUN.

WITH NINE I'LATES.

[Published by permission of George M. Bowers, U. S. Commissioner of Fish and Fisheries.]

CAMBRIDGE, U.S.A.:

Prtntco- for tije fHuscum.

An just, 1907.

EASTERN TROPICAL PACIFIC.

The following Publications of the Museum contain Reports on the Dredging Operations in
charge of Alexander Agassiz, by the U. S. Fish Commission Steamer "Albatross,'' during
190 Jf and 1905, Lieut. -Commander L. M. Garrett, U. S. N., Commanding.

I. Alexander Agassiz. Three Letters to the Hou. George M. Bowers ou the Cruise in the
Eastern Pacific, of the U. S. Fish Commission Steamer "Albatross." Bull. M. C. Z.,
XLVI. No. 4. April, 1905. 22 pp.

II. Harriet Richardson. Description of a new genus of Isopods, typical of a peculiar
family. Bull. M. C. Z., XLVI. No. 6. July, 1905. 4 pp. 1 Plate.

III. C. A. Kofoid. Craspedotella, a new genus of the Cystoflagellata, an example of con-

vergence. Bull. M. C. Z., Vol. XLVI. No. 9. September, 1905. 5 pp. 1 Plate.

IV. W. E. Rittek. Octacnemus. Bull. M. C. Z., Vol. XLVI. No. 13. January, 1906. 22 pp.

3 Plates.

V. Alexander Agassiz. General Report of the Expedition. Mem. M. C. Z., Vol. XXXIII.
January, 1906. 90 pp. 96 Plates.

VI. T. W. Vaf(4han. Madreporaria. Bull. M. C. Z., Vol. L. No. 3. August, 1906. 14 pp.
10 Plates.

VII. C. R. Eastman. Sharks' Teeth and Cetacean Bones. Bull. M. C. Z., Vol. L. No. 4.
November, 1906. 26 pp. 4 Plates.

VIII. S.F.Clarke. The Hydroids. Mem. M. C. Z., Vol. XXXV. No. 1. February, 1907.
20 pp. 15 Plates.

IX. C. A. Kofoid. New Species of Dinoflagellates. Bull. M. C. Z., Vol. L. No. 6. Feb-
ruary, 1907. 48 pp. 18 Plates.

X. Mary J. Rathbun. The Brachyura. Mem. M. C. Z., Vol. XXXV. No. 2. August,
1907. 54 pp. 9 Plates.

Umoirs of tbe Uluscum of Compnnittbe Zoology

AT HARVARD COLLEGE.

Vol. XXXV. No. 2.

REPORTS ON THE SCIENTIFIC RESULTS OF THE EXPEDITION TO THE
TROPICAL PACIFIC, IN CHARGE OF ALEXANDER AGASSIZ, BY THE
U. S. FISH COMMISSION STEAMER "ALBATROSS," FROM AUGUST,
1899, TO MARCH, 1900, COMMANDER JEFFERSON F. MOSER, U. S. N.,
COMMANDING.

IX.

REPORTS ON THE SCIENTIFIC RESULTS OF THE EXPEDITION TO THE
EASTERN TROPICAL PACIFIC, IN CHARGE OF ALEXANDER AGASSIZ,
BY THE U. S. FISH COMMISSION STEAMER « ALBATROSS," FROM
OCTOBER, 1904, TO MARCH, 1905, LIEUT.-COMMANDER L. M. GARRETT,
U. S. N, COMMANDING.

X.

THE BRACHYURA.

By MARY J. EATHBUN.

WITH NINE TLATES.

[Published by permission of George M. Bowers, U. S. Commissioner of Fish atid Fisheries.]

CAMBRIDGE, U.S.A.:

$3rinteo far tlje fHuscum.
August, 1907.

TABLE OF CONTENTS.

Page

Introduction 25

Ocypode ceratoplithalma 26

Ocypode cordimana 26

Uca tetragonon 26

Uca gaimardi 26

Cardisoma carnifex 26

Cardisoma rotundum 27

Grapsus grapsus tenuicrustatus ... 27

Grapsus strigosus 27

Grapsus longitarsis 28

Geograpsus grayi 28

Geograpsus crimpes 28

Geograpsus lividus stormi 29

Leptograpsus variegatus 29

Metopograpsus messor 29

Pacliygrapsus transversus 29

Pachygrapsus plicatus 29

Pacliygrapsus fakaravensis, PI. 5, Fig.

1; PI. 9, Figs. 6,6a 29

Pachygrapsus minutus 30

Pachygrapsus longipes 30

Ptychognathus easterana, PI. 2, Fig. 4;

PL 7, Figs. 4, 4 a. 31

Pseudograpsus albus 32

Heraigrapsus elongatus, PI. 2, Fig. 2;

PI. 7, Figs. 2, 2 a 32

Sesarma (Sesarma) rotundatum ... 33

Sesarma (Sesarma) trapezoideum . . 33

Sesarma (Parasesarma) plicatum . . 34
Sesarma (Parasesarma) carolinensis,

PL 5, Figs. 2,2 a; PL 9, Fig. 1 . . 34

Sesarma (Holometopus) obtusifrons . 35

Sesarma (Holometopus) villosum . . 35

Helice leachii 36

Cyclograpsus lougipes 36

Cyclograpsus parvulus 36

Plagusia speciosa 36

Plagusia dentipes 36

Percnon planissimum 37

Pack

Carpilius maculatus 37

Carpilius couvexus 37

Carpilodes tristis 37

Carpilodes rugatus .37

Carpilodes monticulosus 37

Atergatis ocyroe 37

Platypodia anaglypta 38

Platypodia digitalis, PL 1, Fig. 6; PL

9, Figs. 4, 4 a 38

Zosimus aeneus 38

Lophozozymus dodone 39

Leptodius sanguineus 39

Leptodius gracilis 39

Leptodius efferens, PL 1, Fig. 11 ; PL 7,

Figs. 6, 6 a 39

Xanthodius cristatus 41

Cyoloxanthops cavatus, PL 5, Fig. 8;

PL 6, Figs. 3, 3 a 41

Etisus laevimanus 42

Etisodes electra 42

Actaea tomentosa 42

Actaea affinis 42

Actaea hirsutissima 42

Actaea remota, PL 1, Fig. 9 ; PL 7,

Fig. 1 43

Actaea rufopunctata 43

Actaea cavipes, PL 1, Fig. 2 .... 44

Daira perlata 44

Xanthias lamarckii 44

Xanthias ponapensis, PL 7, Figs. 5, 5 a 44

Xanthias notatus 45

Xanthias canaliculars 45

Chlorodiella niger 46

Chlorodiella laevissima 46

Phymodius ungulatus, Pis. 3, 4 . . . 46

Chlorodopsis venusta, PL 1, Fig. 5 . . 49

Chlorodopsis spinipes, PL 2, Fig. 5 . 49
Chlorodopsis scabricula, PL 1, Fig. 3;

PL 9, Fig. 5 50

24

TABLE OF CONTENTS.

Page

.-,1

Cyclodius ornatus, PL 5, Fig. 5 ; PI. 7,

Fig. 8

Cyclodius gracilis, PL 1, Fig. 10; PL 7,

Fig. 7 51

Pilodius paumotensis, PL 8, Figs. 2,

2a, 2b 52

Cymo melanodactylus 53

Cyrao quadrilobatus, PL 1, Fig. 7 . . 53

Ozius mgulosus 53

Ozius guttatus 53

Ozius hawaiiensis 54

Ozius tricarinatus, PL 2, Fig. 3 ... 54

Pilumnus andersoni 55

Piluranus cursor 55

Pilumuus globosus 56

Piluranus tahitensis 56

Actumnus integerrimus, PL 1, Fig. 12 ;

PL 8, Figs. 3, 3 a, 3 b 56

Eriphia sebana 57

Ei-iphia scabricula 57

Trapezia rufopunctata 57

Trapezia cymodoce 58

Trapezia cymodoce dentata .... 58

Trapezia~cymodoce ferruginea ... 58

Trapezia cymodoce areolata .... 59

Trapezia cymodoce maculata .... 59

Trapezia digitalis speciosa 59

Trapezia digitalis bella 59

Tetralia glaberrima 60

Domecia hispida 60

Lybia caestifera 60

Caphyra rotundifrons, PL 1, Fig. 4 . 60

Catoptrus nitidus 60

Portunus (Achelous) granulatus . . 60
Calliuectes alexandri, PL 2, Fig. 1 ;

PL 9, Figs. 3, 3 a, 3 b 61

Thalamonyx parvidens, PL 5, Fig. 9 . 62

Thalamita erenata 62

Thalamita coeruleipes 63

Thalamita admete 63

Page

Thalamita gardineri 63

Thalamitoides quadridens 64

Carupa laeviuscula 64

Menaetbius monoceros 64

Halimus borradailei 64

Perinea tumida 65

Scliizopbrys aspera 65

Lophomicippa 65

Lophomicippa limbata, PL 5, Fig. 3;

PI. 6, Figs. 1-1? 65

Partbenope (Parthenope) melana, PI.

5, Fig. 6 ; PL 6, Fig 2 66

Calappa bepatica 67

Matuta banksii 68

Nucia gelida, PL 5, Fig. 4; PL 9,

Figs. 2-2c 68

Leucosides whitmeei 68

Ocypode gaudichaudii 69

Grapsus grapsus 69

Planes minutus 69

Micropanope taboguillensis, PL 1, Fig.

8 ; PL 7, Figs. 3, 3 a 69

Xanthodius sternbergbii 70

Cycloxantbops vittatus 70

Actaea dovii 71

Ozius verreauxii 71

Ozius agassizii 71

Heteractaea lunata 71

Eriphia squamata 71

Portunus (Achelous) affinis .... 71

Euphylax dovii 72

Acanthonyx petiverii 72

Pelia pacifica 72

Scyramathia cornuta 73

Scyramatbia vesicularis, PL 5, Fig. 7;

PL 8, Figs. 1, 1 a 73

Mithrax belli! 74

Mithrax denticulatus 74

Thoe erosa 74

Calappa convexa 74

THE BRACHYURA

As dredging and shore collecting were of secondary importance during
the two cruises of the" Albatross " in the tropical Pacific, the adult Decapods
obtained by no means represent the complete fauna of the area visited.
Nevertheless, 136 species of Brachyura were obtained, and among them 18
species and one genus new to science.

The majority of the new forms are from the Caroline Islands and the
Paumotu Archipelago, while two come from Easter Island. A remarkable
discovery is that of a Callinectes inhabiting Tahiti and the Fijis. The genus
is one heretofore restricted to middle America and the west coast of Africa.
The insular species, even as observed in the young, is a strongly marked
one. An addition to the deep-water fauna is a Scyramathia, dredged in 300
fathoms off the Galapagos.

A young specimen of the shore crab, Grapsus long itar sis, only 6.5 mm.
wide, but having the form of the adult, was taken in the intermediate tow-
net, between 300 fathoms and the surface, at station 4717, about 600 miles
southwest of the Galapagos Islands, where the depth of the ocean is 2153
fathoms, and where the South Equatorial Current sweeps in a northwesterly
direction past the Galapagos towards the Mid-Pacific. It is not surprising,
then, that this species when full grown does not inhabit the Galapagos, but
is known to occur at the Paumotus, the Ellice, and the Hawaiian Islands.
If this single example is representative, the species is fully equipped for its
littoral life long before it reaches its final habitation.

The type specimens described below are in the United States National
Museum.

The drawings were made by Miss E. G. Mitchell, the photographs by Mr.
Clarence Dodge.

26 THE BEACHYUEA.

INDO- PACIFIC REGION.
OCYPODIDAE.

Ocypode ceratophthalma (Pallas).

Ocypoda ceratophthalma Alcock,1 1900, 69, 345.

Rangiroa Id., Paumotus; shore; Sept 23, 1899; lc?.
Fakarava Id., Paumotus; outer reef; Oct. 12, 1899; 1 juv.
Makemo Id., Paumotus; Oct 21, 1899; 1 3 .
Nomuka Iki, Tonga Group ; shore; Dec. 2, 1899; 2 <?.
Guam Id., Padrone Ids.; Feb. 22, 1900; 1 9.

Ocypode cordimana Desmarest.

Ocypoda cordimana Alcock, 1000, 69, 349.

Nomuka Iki, Tonga Group; shore; Dec. 2, 1899 ; 1 <?, 1 9.

Uca tetragonon (Herbst).

G-elasimus tetragonum Alcock, 1900, 69, 357.

Borabora Is., Society Group; shore; Nov. 17, 1899; 9o% 29.
Tongatabu, Friendly Islands; reef and shore; Nov. 30, 1899; 5<?, 19.
Tarawa Is., Gilbert Group ; shore ; Jan. 3, 1900 ; 1 £ .

Uca gaimardi (Milne Edwards).
Gelasimus gaimardi Milne Edwards, Ann. Sci. Fat., 1852 (3), 18, 150, pi. 4, fig. 17.

Near Papeete, Tahiti ; Sept. 29, 1899 ; 3 t, 2 9.

Borabora Is., Society Group; shore; Nov. 17, 1899; 22 &, 10 9.

Kusaie, Carolines; Feb. 9, 1900; 1 $ .

GECARCINIDAE.

Cardisoma carnifex (Herbst).

Cardiosoma carnifex Alcock, 1900, 69, 445.

Rangiroa Island, Paumotus; beach; Sept. 21, 1899 ; 1 <?.
Rangiroa Island on Mohegan Beach; Sept. 21, 1899; 1 <?.
Near Papeete, Tahiti; Sept. 29, 1899; 1 «j juv., 1 ? juv.

1 As the greater part of the species enumerated are described by Alcock in his " Materials for a
Carcinological Fauna of India," published in the Journal of the Asiatic Society of Bengal, 1895-1000,
64-69, references to that work are abbreviated to year, number of volume, etc.

GRABSIDAE. 27

Cardisonia rotundum (Quoy and Gaimard).

Tlielphusa rotunda Quoy and Gaimard, in Freycinet's Voyage autour du mondo, 1825,

Zool., 3, 527, pi. 77, fig. 1 (Thelphuse chaperon arrondi).
Cardisonia hirtipes Dana, l'roc. Acad. Nat. Sci. Phil., 1851, 5, 25.'!; Crust. U. S. Expl.

Exped., 1852, 1, 378; atlas, 1855, pi. 24, fig. 2.
Cardiosoma hirtipes, Alcock, 1900, 69, 447.
Cardisoma rotundum Satford, Contr. U. S. Nat. Herbarium, 1905, 9, 90. Eathbun,

Bull. U. S. Fish. Comm. for 1903 (1906) part 3, 838.

Niue; Sept. 25, 1899; 1 9, juv.

Besides the characters given by Alcock (he. cit.) for distinguishing this
species from the preceding, the following are very striking: — The width
(transverse dimension) of the orbit is about § of the anterior width of the
front, in C. rotundum; the width of the orbit is greater than the anterior
width of the front, in C. carnifex. The granulated line which marks the
anterolateral border of the carapace is not prolonged behind the level of the
gastro-cardiac suture, in C. rotundum; while the same line is prolonged far
behind the suture, in C. carnifex.

In the 3 females of C. rotundum which I have examined, the antero-
lateral region of the carapace and also the chelipeds are much more roughly
granulated than in the males.

GRAPSIDAE.

Grapsus grapsus tenuicrustatus (Herbst).

Grapsus grapsus tenuicrustatus Ratlibun, Bull. U. S. Fish Comm. for 1903 (190C), part
3, 838, and synonymy.

Mohegan Reef, Rangiroa Id., Paumotus ; Sept. 21, 1879 ; 1 <?, 3 9
Rangiroa Id. ; beach ; Sept. 21, 1899 ; 1 9 .
Fakarava, Paumotus; reef, sea beach ; Oct. 13, 1899; 1 c?.
Makemo, Paumotus ; Oct. 29, 1899; H, 19.

Grapsus strigosus (Herbst).
Grapsus strigosus Alcock, 1900, 69, 393.

Tongatabu, Friendly Islands; shore; Nov. 29, 1899; 2, c? and 9 of small
size.

28 THE BEACHYUEA.

Grapsus longitarsis Dana.

Grapsua strigosus longitarsis Eathbun, Bull. U. S. Fish Coinin. for 1903 (1906), part 3,
838, text fig. 4, pi. 8, fig. 1.

Rangiroa Island, Paumotus ; beach ; Sept. 21, 1899; 1 <$ , 1 9.

Mohegan Reef, Rangiroa; Sept. 21, 1899; 1 S.

Tikei, Paumotus ; shore ; Oct. 9, 1899 ; 1 9 with eggs.

Fakarava Island, Paumotus; outer reef; Oct. 12, 1899; 1 S.

Funafuti, Ellice Islands; shore; Dec. 25, 1899; 1 9.

Between Galapagos and Manga Reva ; 300 fath. to surface ; station
4717 ; Jan. 13, 1905 ; 1 juv.

I now believe the longitarsis form to be an independent species. Resides
the characters given in the work above cited, G. longitarsis has the anterior
half of the carapace more tuberculous, front wider, and the ridge running
lengthwise across the middle of the palm less distinct than in G. strigosus.
Although the fingers are narrower at the tip than in typical Grapsus, they
are much more hollowed underneath than in Geograpsus.

Geograpsus grayi (Milne Edwards)-
Geograpsus grayi Alcock, 1900, 69, 395.

Nine; Nov. 25, 1899; 1 S, 1 9.

The width of the meropodites of the ambulatories in this and the fol-
lowing species is not a dependable character. In the U. S. National Museum
there are specimens of G. grayi from Glorioso Id. in which the meropodites
are less than half as wide as long, and a series from Japan in which they are
more than half as wide as long.

In G. crinipes, which have been handled (from 7 localities), the meropo-
dites are commonly less than half as wide as long, sometimes just half as
wide as long.

Geograpsus crinipes Dana.

Geograpsus crinipes Alcoek, 1900, 69, 396.

Makemo Id., Paumotus; Oct. 29, 1899; 1 $.
Aruo Atoll, Marshall Ids. ; Jan. 27, 1900 ; 1 9.
Ponape, Caroline Ids.; Feb., 1900; 1 <?, 1 9.
Kusaie, Caroline Ids.; Feb. 9, 1900; 1 9.

GRAPSIDAB. 29

Geograpsus lividus stormi do Man.

Geograpsus lividus var. stormi de Man, Zool. Jalirb., Syst., 1895, 9, p. SS ; 1898, 10. pi.
28, fig. 18 a and c.

Nukuhiva, Marquesas Ids.; shore, seine; Sept. 15-17, 1899; 1 ? with
eggs.

Tarawa Id., Gilbert Group ; shore ; Jan. 3, 1900 ; 1 <?.
Tari-Tari Id.; shore; Jan. 6, 1900; 1 o.

Leptograpsus variegatus (Fabricius).

Leptograpsus variegatus Kingsley, Proc. Acad. Nat. Sci. Phil., 1880, 196.

Easter Id. ; shore ; Dec. 21, 1899, Dec. 16, 20, 1904 ; 4 $ 5 ? ; also in
La Perouse Bay; Dec. 17, 1904; 7 <?, 59.

Metopograpsus messor (Forskal).

Metopograpsus messor Rathbun, Bull. U. S. Pish Comm. for 1903 (1900), part 3, 839.

Borabora, Society Ids. ; shore and fringing reef; Nov. 17, 1899; 2<?.
Tongatabu; shore and reef; Nov. 29, 30, 1899 ; 11 <?, 8?.
Tari-Tari Id.; shore; Jan. 19, 1900; 1 $.
Kusaie, Caroline Ids.; reef; Feb. 8, 1900; 2?.

Pachygrapsus transversus (Gibbes).

Pachygrapsus transversus Rathbun, Bull. U. S. Pish Comm. for 1900 (1901), 2, 17.

Easter Id.; shore ; Dec. 16, 1904; 1 ?.

Pachygrapsus plicatUS (Milne Edwards).
Pachygrapsus plicatus Kingsley, Proc. Acad. Nat. Sci. Phil., 18S0, 200, and synonymy.

Fakarava Id. ; Paumotus ; outer reef; Oct. 12, 1899; 1 $, 1 juv.
Makemo, Paumotus; reef; Oct. 21, 1899; 1 $.
Funafuti, Ellice Ids.; reef; Dec. 24, 1899; 1 (broken).
Kusaie, Caroline Ids.; reef; Feb. 8, 1900; 2 ?.

Pachygrapsus fakaravensis, sp. nov.

PI. 5, Fig. 1 ; PI. 9, Figs. G, 6a.

Carapace j\ as long as wide, its whole surface crossed by prominent,
granulated lines, the granules diminishing in size from front to back, the

30 THE BRACHYURA. '

lines fringed anteriorly by hairs lying flat on the carapace, and averaging
half the width of the space between ridges. Lateral borders parallel and
entire.

Front a little over half width of carapace, steeply inclined, its free edge
slightly sinuous and as a whole convex. Middle pair of suprafrontal lobes
very prominent and elongate, separated from each other and from the
lateral lobes by broad, deep, hairy furrows.

Chelipeds of <? unequal, much stouter than legs, li x as long as carapace,
and roughened by striae fringed with hair, those on the arm smooth, those
on the wrist granulated, short and curved ; those on the outer face of the
palm coarsely granulate and longitudinal, except near the top, where they
are broken into short lines or tubercles. Inner border of ischium and merus
denticulate; inner tooth of wrist stout, sharp-pointed. Fingers narrowly
gaping, each with a tooth on the basal half much larger than the other teeth ;
that on the dactylus is proximal to that on the pollex.

Legs smoothly striated, the striae fringed ; those on the merus joints
transverse, those on the carpal and propodal joints longitudinal. Last three
joints bristly and sparsely long-hairy. Merus with a subterminal spine on
the anterior margin, and 3 or 4 spines at the distal end of the posterior
margin. Second leg longest, twice as long as carapace.

Dimensions: — $ , length 18 mm., width 19.5 mm.

Type locality : — Fakarava Id., Paumotus ; outer reef; Oct. 12, 1899; 1<?
(Cat. No. 32,844, U. S. N. M.).

This species is near P. plicatus (Milne Edwards),1 but is distinguished at
once by its parallel sides, coarse striation, and great hairiness.

PachygrapsUS minutUS A. Milne Edwards.
Pachygrapsus minutus Rathbun, Bull. U. S. Fish Comm. for 1903 (1906) part 3, 840.
Ponape, Caroline Ids.; reef; Feb. 11, 12, 1900; 6 <?, 1 ?.

Pachygrapsus longipes Rathbun.

Pachygrapsus longipes Rathbun, Bull. U. S. Fish Comm. for 1903 (190C) part 3, 840,
pi. 8, fig. 7.

Fakarava Id., Paumotus; outer reef; Oct. 12, 1899 ; 1 ?
Kusaie, Caroline Ids.; reef; Feb. 8, 1900 ; 3 $ 1 9 .
Ponane Caroline Ids.; reef; Feb. 11, 12, 1900; 2 9

1 Hist. Nat. Crust, 1837, 2, 89.

GRAPSIDAE. 31

Ptychognathus easterana, sp. nov.
PI. 2, Fig. 4; PI. 7, Figs. 4, 4 a.

Male. — Carapace distinctly broader than long, broadest at the posterior
of the lateral teeth, slightly convex in an antero-posterior as well as a
transverse direction. Surface with a deep median H-form depression,
and numerous irregular pits, some of which define the hepatic region.
Anterior and lateral portions very finely granulate. Entire upper surface
punctate and finely veined.

Fronto-orbital width about |, and front about f , the greatest width of
the carapace; edge of front sinuous; orbital margin sinuous and directed
distinctly backward toward the outer angle.

Two lateral teeth, marked by triangular notches, the posterior the
smaller; distance between tips of teeth | the distance between the first
tooth and the orbital tooth. The branchial ridge arises as far behind
the second of the lateral teeth as those teeth are distant from each other ;
the ridge or granulated line is bent at first ' strongly inward, then turns
strongly backward.

The edge of the front, viewed from before, is curved upward.

The outer maxilliped is much like that of P. polleni de Man,1 but
the merus of the endognath has a greater outer extension. The abdomen
of the c? resembles also that species (op. cit., fig. 20 b), but the sides of the
terminal segment are more divergent at the base.

Chelipeds finely granulate. Wrist with blunt inner angle. Chelae
without the patch of hair so conspicuous in some species. Immovable
finger with a deep longitudinal groove, which at the base of the finger
turns upward on the palm. Fingers with a moderate gape ; dactyl with
many teeth, the basal one a little larger. Teeth of pollex, 3 large, and
1 or 2 small at basal end. Horny, spoon-shaped extremities of fingers,
bordered proximally with a row of short hairs.

Last 3 joints of feet with short setae on the edges ; meral joints setose
at the extremity, with transverse bands of color.

Dimensions: — £, length 10.6 mm., width 12.7 mm.; fronto-orbital
width 11 mm., width of front 4.7 mm.

Type locality: — Easter Island; shore; Dec. 20, 1904; 1 $ (Cat.
No. 32,845, U. S. Nat. Mus.).

1 Zool. Jahrb., Syst, 1808, 10, pi. 28, fig. 20 a.

32 THE BKACHYUKA.

The genus Ptychognathus already comprises 12 species and 1 subspecies,
all Indo-Pacific. Our species is most closely related to P. polleni de Man,1
from Madagascar, in which the carapace is narrower and front wider, and
the branchial ridge arises near the last lateral tooth.

Pseudograpsus albus Stimpson.

Pseudograpsus albus Kingsley, Proc. Acad. Nat. Sci. Phil., 1880, 205.
Fakarava Island, Paumotus ; outer reef ; Oct. 12, 1899; 1 ? juv.

Hemigrapsus elongatus (A. Milne Edwards).
PI. 2, Fig. 3; PI. 7, Figs. 2,2 a.

Heterograpsus elongatus A. Milne Edwards, Nouv. Ai-ch. Mus. Hist. Nat. Paris, 1873,
9, 317, pi. 17, fig. 5.

Tongabatu, shore; Nov. 22, 1899; 1 <?.

The fronto-orbital width is a little less than the length, while the greatest
width of the carapace exceeds the length. Carapace almost smooth and
punctate, the punctae unequal in size and distribution. Posterior angles
of mesogastric region deeply marked. The postero-external surface of
the branchial region is very steep, and its upper margin is stronger
than the lower, and continued nearly to the posterior margin of the
carapace. Front very nearly half as wide as the carapace ; the lobes of
margin are separated by a broader sinus than shown in Milne Edwards's
figure. Upper margin of orbit sinuous, a notch at the inner end. Lateral
teeth blunt, formed by small triangular notches, the distance between them
less than the distance from the first to the orbital angle.

The left cheliped only is present. Merus and carpus unarmed, the
inner angle of the latter bluntly rounded. Palm nearly as high as long,
and longer than the fingers, measured horizontally. The longitudinal
ridge on the lower half of the palm occupies only the proximal half.
Fingers strongly gaping. The large patch of thick hair on the inner
side of the chela extends half way on the palm and half way along the
pollex, and partly along the occludent edges of the fingers, even to the
outer side of the articulation of the dactylus.

The ambulatory legs are chiefly light colored, with a few narrow bands
of the dark color of carapace and cheliped. They are sparsely furnished
with fine hairs.

1 Op. cit., 1895, 9, 94 ; 1898, 10, pi. 28, fig. 20.

GEAPSIDAE. 33

Abdomen of & rather narrow; terminal segment much longer than
wide.

Dimensions: — Length of carapace 8.3 mm.; width 9.1 mm.; fronto-
orbital width 7.5 mm. ; front 4.4 mm.

Sesarma (Sesarma) rotundatum Hess.

Sesarma rotundata Iless, Arch. f. Naturg., 1865, 31, 1, 149, pi. 6, fig. 9. Miers, Troc.

Zool. Soc. London, 1877, 133, 136. De Man, Zool. Jahrb., Syst., 1887, 2, 654, 682.
Sesarma deutifrons A. Milne Edwards, Nouv. Arch. Mus. Hist. Nat. Paris, 1869, 5, 31.

De Man, Zool. Jahrb., Syst., 1887, 2, 651; Jahrb. Hamburg. Wiss. Anst., 1896, 13,

110, pi. 3, figs. 6 and 7.
Sesarma gardineri Borradaile, Proc. Zool. Soc. London, 1900, 593, pi. 42, fig. 8.
Sesarma (Sesarma) gardineri Nobili, Ann. Mus. Nat. Hungarici, 1905, 3, 497.
Sarmatium faxoni Ivathbuu, Bull. U. S. Fish Comm. for 1903 (1906), part 3, 841, pi. 7,

fig. 1.

Aruo Atoll, Marshall Group; Jan. 27, 1900; 1 S.

Distribution: — Oahu and Marshall Islands (Rathbun) ; Duke of York
Island (Miers) ; Upolu (A. M. Edwards) ; Funafuti and Rotuma (Borradaile) ;
Nairai, Fijis (Miers) ; Seleo, Berlinhafen, New Guinea (Nobili) ; Sydney
(Hess).

I think that Nobili is correct in his surmise that S. gardineri Borradaile is
the same as 8. rotundatum Hess. This is also the species that I mistakenly
placed in Sarmatium, S.faxoni (loc. cit.). In the two specimens before me,
<? and ?, the anterior § of the branchial region is inflated. The 3 (Aruo)
has a soft shell, the lower edge of its front is visible in a dorsal view ; in
the 9 (Oahu) this edge is invisible in a dorsal view. In the £ the posterior
margin of the orbit slopes distinctly outward and backward ; in the ? almost
imperceptibly so.

Neither of these specimens agrees in detail with the type of S. deuiifrons
A.M.Edw. or of S. rotundatum Hess as figured by de Man {loc. cit.), or with
the figure of S. gardineri Borradaile, but the differences may be attributed
to individual variation.

Sesarma (Sesarma) trapezoideum (Milne Edwards).

Sesarma trapezoidea Milne Edwards, Hist. Nat. Crust., 1837, 2, 74. De Man, Zool.
Jahrb., Syst., 1887, 2, 654 ; 1889, 4, 426, pi. 9, fig. 7.

Fatana River, Tahiti; Nov. 7, 1899; 1 $.

3

34 THE BRACHYUEA.

Sesarma (Parasesarma) plicatum (Latreille).

Cancer quadratus Fabricius, Suppl. Eutora. Syst., 1798, 341. (Not Cancer quadrata
Meuschen, Mas. Gronov., 177S, 84, which is an indeterminable species of Sesarma
(?) from America, nor Cancer quadratus Fabricius, Mant. Ins., 1787, 1, 315, which
is an Ocypode.)

Ocypode plicata Latreille, Hist. Nat. Crust., 1803, 6, 47.

Sesarma quadratum Alcock, 1900, 69, 413.

Kusaie, Carolines; Feb. 9, 1900; 4 <?, 4 ?, 5 juv.

Small specimens, the largest, an adult ?, measuring only 14.5 mm. in
width. Legs marked with irregular transverse stripes of color.

Sesarma (Parasesarma) carolinensis, sp. nov.
PI. 5, Figs. 2,2a; PI. 9, Fig. J.

Carapace considerably broader than long, and broader anteriorly than pos-
teriorly. Surface almost smooth to the naked eye, but under the lens
crossed, except in the middle portion, by fine transverse rugae, which are
for the_most part short, but the branchial region has 5 or G long lines, and
the posterior part has some longish lines ; surface sparingly punctate. Re-
gions faintly indicated, except the anterior portion of the mesogastric. No
lateral teeth.

Front I of the fron to-orbital width, vertical; 4 superior lobes subequal
and well separated ; sides of front parallel ; lower margin in front view for
the most part straight, but toward the ends rounding up to the lateral
margins ; in dorsal view, slightly bilobed. Superior margin of orbit sloping
almost directly backward to the orbital tooth.

Merus joint of chelipeds with a large laminate anterior expansion, the
edge of which is denticulate ; the denticles are larger, more irregular, and
more projecting on the distal border of the lamina. Upper surface of arm
and wrist rugose. Inner angle of wrist blunt. Outer surface of hand
for the most part smooth and covered with large punctae ; upper part finely
granulate, the granules proximally forming rugae ; 2 oblique pectinated
ridges not parallel to the border of the hand. The upper surface of the dac-
tyls is marked by 14 or 15 transverse ridges, each of which is longer than
the intervals between them, and is divided lengthwise by a groove. Each
intervening space is occupied by an elevation, sub-triangular in shape, the
base of each triangle being at the proximal end of the space. The fingers
of the S have a very slight gape ; the teeth of the dactylus are smaller than

GRAPSIDAE. 35

those of the pollex ; the largest tooth of the former lies near its base, of the
latter near its middle. Inner surface of palm very finely granulated ; a
row of granules near and parallel to the distal end of the palm.

Ambulatory legs of moderate length and width. Posterior margin of
merus joints unarmed ; anterior margin with a sharp sub-distal spine. Last
3 joints furnished with a few stiff bristles and long hairs; dactyli slender,
nearly as long as propodi. The legs have irregular transverse bands of
color.

Dimensions: — Length 7 mm.; fronto-orbital width 9.7 mm.; posterior
width 8.5 mm.; width of front 5.5 mm.

Type locality : — Kusaie, Carolines; Feb. 9, 1900: 1<? (Cat. No. 32,8G1,
U. S. N. M.).

This species most closely resembles Sesarma {Parascsarma) lenzii de Man1 ;
but our species has the lamina of the arm-joint less projecting distally, the palm
smoother inside and out, the pectinated ridges not parallel to the proximal
margin of the palm, and the projections of the upper margin of the movable
finger of different shape and not obliquely placed.

Sesarma (Holometopus) obtusifrons Dana.

Sesarma (Sesarma) obtusifrons de Man, Zool. Jahrb., Syst., 1895, 9, 1G1; 1898, 10, pi.
29, fig. 31.

Nine ; Nov. 25, 1899 ; 1 <?.

This species is variable in its proportions. In the 8 from Nine the length
is to the width as 1:1.35; in a £ from Hilo as 1:1.25; while de Man
{he. eii.) gives measurements of males, which have a width of 1.31 and 1.34 x
their length, respectively.

Abdomen of S from Nine a little narrower than those from Hilo or than
that figured by de Man (op. cit., fig. 316).

Sesarma (Holometopus) villosum A. Milne Edwards.

Sesarma villosum A. Milne Edwards, Nouv. Arch. Mus. Hist. Nat. Paris, 18G9, 5, 31.
Sesarma villosa de Man, Zool. Jahrb., Syst., 1887, 2, <>44.

Sesarma (Sesarma) villosa de Man, Zool. Jahrb., Syst., 1895, 9, 153; 1898, 10, pi. 29,
fig. 30.

Kusaie, Carolines; Feb. 9, 1900; 1 S.

1 Zool. Jahrb., Syst., 1895, 9, 193 ; 1898, 10, pi. 30, fig. 35.

36 THE BRACHYURA.

Helice leachii Hess.

Helice leachii Hess, Arch. f. Natur., 1865, 31, 1, p. 153.

Helice pilimana A. Milne Edwards, Nouv. Arch. Mus. Hist. Nat. Paris, 1873, 9, 313, pi.

18, fig. 1.
Helice leachi de Man, Zool. Jahrb., Syst., 1887, 2, 690, 702.

Kusaie, Carolines; Feb. 9, 1900; 1 <?.

Oho Sima, Tokaito coast, Japan; F. Sakamoto coll.; 2 6\ 1 ? (U. S. Nat.
Mus.).

In the four specimens before me, the longitudinal ridge on the lower
third of the outer face of the palm is very short, present on the proximal
end of the palm only ; the patch of hair at the base of the fingers is also
much restricted, not extending back on the palm as in fig. 1 a of Edwards
(loc. cit.), but confined to the base of the thumb.

Length of largest $ (Japan) 22 mm. ; greatest width 25.2 mm.

Cyclograpsus longipes Stimpson.

Cyclograpsus longipes de Man, Zool. Jahrb., Syst., 1896, 9, 355; 1898, 10, pi. 32, fig. 43.

Papeete, Tahiti; reef; Sept. 28, 1899; 1 ? juv.
Makemo, Paumotus ; reef; Oct. 21, 1899; 1 ?.
Wailangilolu, Fiji Ids. ; Nov. 20, 1897 ; 1 <? .

Cyclograpsus parvulus de Man.

Cyclograpsus parvulus de Man, Zool. Jahrb., Syst., 1896, 9, 350; 1898, 10, pi. 32, fig. 42.
Fakarava Id., Paumotus; outer reef; Oct. 12, 1899; 1 ?•

Plagusia speciosa Dana.

Plagusia speciosa Miers, Ann. Mag. Nat. Hist., 1878 (5), 1, 151.

Makemo Id., Paumotus ; Oct. 21, 1899 ; 1 <?.
The type is from Waterland Id., Paumotus.

Plagusia dentipes (de Haan).

Plagusia dentipes Miers, Ann. Mag. Nat. Hist., 1878 (5), 1, 152.
Easter Id. ; shore ; Dec. 21, 1904 ; 2 6\ 1 ?.

l'lLl'.MNIDAE. 37

Percnon planissimum (Herbst).

Liolophus planissimus Alcock, 1900, 69, 439.

Fakarava Id., Pauniotus; outer reef; Oct. 12, 1899; 1 ? juv.

PILUMNIDAE.

Carpilius maculatUS (Linnaeus).
Carpilius maculatus Alcock, 1898, 67, 79.

Papeete, Tahiti; Oct. 2, 1899; 1 ?.

Fakarava Id., Pauniotus ; outer reef; Oct. 11, 1899 ; 1 9.

Carpilius convexus (Forskal).

Carpilius convexus Alcock, 1898, 67, 80.

Makemo, Pauniotus; reef; Oct. 21, 1899; 1 juv.

Carpilodes tristis Dana.

CarpUodes tristis Alcock, 1898, 67, 82.

Fakarava Id., Pauniotus; outer reef; Oct. 12, 1899; 1 <?.
Carpilodes rugatus (Latreille).

Carpilodes rugatus Alcock, 1898, 67, 84.

Fakarava Id., Pauniotus; outer reef; Oct. 12, 1899 ; 1 <?, 1 9.
Makemo, Pauniotus; reef; Oct. 21, 1899; 1<?, 1 ?.
Papeete, Tahiti; shore; Nov. 9, 1899; 2 <?.
Funafuti, Ellice Id.; reef; Dec. 24, 1899; 3 <?.

Carpilodes monticulosus A. Milne Edwards.
Carpilodes monticulosus Alcock, 1898, 67, 86.

Fakarava Id., Pauniotus; outer reef; Oct. 12, 1899; 2 <?, 2?.
Makemo, Pauniotus; reef; Oct. 21, 1899; 1 ?.

Atergatis ocyroe (Herbst).

Atergatis floridus Alcock, 1898, 67, 98, and synonymy.
Borabora, Society Ids.; shore and fringing reef; Nov. 17, 1899; 1 ?.

38 THE BR ACHY UK A.

Platypodia anaglypta (Heller).

Lophactaea anaglypta Alcock, 1898, 67, 102.

Fakarava, Paumotus ; shoal in lagoon ; Oct. 11, 1899 ; 1 9.
Fakarava, Paumotus; outer reef; Oct. 12, 1899 ; 1 9.

Platypodia digitalis, sp. nov.

PI. 1, Fig. 6 ; PI. 9, Figs. 4, 4a.

Carapace narrower than in most Indo-Pacific species of this genus. Inter-
regional furrows filled with a short tomentum; a few long hairs scattered
on the carapace. Granules of surface small, scabrous, and sparsely distrib-
uted. Surface behind middle of cardiac region smooth. A median furrow
forms two lobules on the broad part of the mesogastric area ; protogastric
area without longitudinal division. A thin, light-colored rim borders the
front, orbits, and antero-lateral margins, and is marked by a closed fissure
on the median line, two on the orbit and three on the sides.

Chelipeds heavy, unequal. Outer surface of palms covered with sharp
tubercles arranged somewhat in rows ; upper edge not cristate, but armed
with 5 or 6 tubercles. Fingers very short and stout ; pollex shorter than
its width at base ; tips very stumpy in the large claw, slenderer and more
acute in the small claw ; prehensile edges of both fingers with a broad tooth ;
inner and outer surfaces with one or two tufts of hair. On account of the
short thumb, the movable finger is more vertical than commonly in the
genus.

Ambulatory legs of moderate width, upper edges acute, but not cristate.

Dimensions : — Adult 9, length 8.4 mm., width 11.5 mm.

Distribution : —

Papeete, Tahiti; reef; Nov. 28, 1899; 1 9.

Kusaie, Carolines; 1900; 1 9 type (Cat. No. 32,846, U. S. N. M.).

This species belongs to the granulosa group of Alcock (1898, 67, 100), in
which the upper border of the hand is not cristate, but P. digitalis is sepa-
rated from others of the group by having the pollex broader than long, the
protogastric lobes not longitudinally divided, the ambulatory legs not cristate.

ZosimilS aeneilS (Linnaeus).
Zozymus aeneus Alcock, 1898, 67, 104.
Makemo Id., Paumotus; Oct. 20, 1899; 1 9.

rinnisriDAE. 39

Lophozozymus dodone (Herbst).

Lophozozymus dodone Alcock, 1898, 67, 108.

Funafuti, Ellice Ids.; reef; Dee. 24, 1899 ; 1 ? juv.

This small 9 (5.2 x 8.7 mm.) is not typical, the hands are narrower than
all other, but larger, specimens examined, the immovable finger is more
elongate, and the palm is not cristate beneath. In other respects the crab
might easily be a dodone ; the outline and proportion of the carapace are
normal, the central portion is very smooth, there are short ridges on the
side-teeth T and S (of Dana) and on the hepatic region and just inside
of T.

LeptodiUS sanguineus (Milne Edwards).
Xantho (Leptodius) sanguineus Alcock, 1898, 67, 119.

Nukuhiva, Marquesas Ids. ; shore, seine ; Sept. 15-17, 1899; 6 6*, 3 ? (2
ovig.).

Mohican Reef, Rangiroa Id. ; Sept. 23, 1899 ; 3 ? (1 ovig.).

Papeete, Tahiti; reef; Sept. 28, 1899; 1 <?.

Makatea Id.; shore; Oct. 6, 1899; 1 <?.

Fakarava Id., Paumotus ; outer reef; Oct. 12, 1899; 2 <?, 1 ?, ovig.

Makemo, Paumotus ; reef; Oct. 21, 1899 ; 3 <J.

Borabora, Society Ids. ; shore and fringing reef; Nov. 17, 1899; 1 £.

Tongatabu; shore; Nov. 29, 1899; 1 $.

Tarawa Id., Gilbert Group ; shore ; Jan. 3, 1900 ; 1 <?.

Manga Reva; Feb. 3, 1900; 1 $.

Ponape, Caroline Ids. ; reef; Feb. 12, 1900; 1 6*.

Aino Atoll; 1900; 1 <?.

Leptodius gracilis (Dana).

Chlorodius gracilis Dana, Crust. U. S. Expl. Exped., 1852, 1, 210; atlas, 1855, pi. 11,
fig. 13.

Kusaie, Caroline Ids.; reef; Feb. 8, 1900; 4 <?, 2 ? (1 ovig.).

Leptodius efferens, sp. nov.

PI. 1, Fig. 11 ; PI. 7, Figs. 6,6 a.

A small species. Carapace broadly oval, the front not projecting beyond
the curve of the antero-lateral borders. Regions marked by fine grooves.

40 THE BRACHYURA.

Surface finely granulous, with a few ill-marked ridges, the posterior-middle
portion nearly smooth. Fronto-orbital width § of entire width ; front | of
the former, convex, with a median V-shaped notch and a small outer tooth.
Front separated from orbit by a notch and a furrow. Orbits large, nearly
tilled by the eyes, and having a small notch above and another just below
the outer angle. Antero-lateral teeth 5, the second rounded and partly
fused with the small first or orbital tooth ; third and fourth of good size,
fifth small. Short grooves run inward from the lateral sinuses. Garapace
equally wide at the fourth and fifth teeth. Margin of front, orbits, and teeth
granulous.

The basal segment of the antennae just meets the downward prolonga-
tion of the front. The ridge on the palate is well marked anteriorly, and
the notch in the epistome, just outside the ridge, is broad and deep.

Chelipeds unequal in both sexes, short, stout, granulate. The wrist has
a distal groove and a stumpy inner tooth. Fingers black, except at the
tips, where they are brown, with a white rim on the edge of the shallow
spoon. The color of the pollex runs back a little on the palm, more so in
the S than in the 9 ; the fingers have shallow grooves and are finely granu-
late at the base ; in the <? the fingers gape and the prehensile teeth are
small; in the 9, the fingers do not gape, and in the large claw they bear
rather large teeth which dovetail together. The tips of the fingers are
not enlarged and are hollowed out, but not hooflike.

Ambulatory legs missing.

Last 2 segments of $ abdomen short and broad ; abdomen narrowest at
distal end of the third or compound segment.

Dimensions: — $ type, length 3.7 mm., width 5.8 mm., fronto-orbital
width 4.3 mm., width of front 2 mm.

Type locality: — Ponape, Carolines; reef; Feb. 11, 1900; 1 $ type,
1 9 (Cat. No. 32,847, U. S. N. M.).

Differs from typical Leptodius in its more regularly oval form, in the
conspicuous granulation of chelipeds and carapace, and in the greater
development of the palatal ridge.

TILUMNIDAE. 41

Xanthodius cristatus (Boiradaile).

Leptodius (Xanthodius) cristatus Borradaile, Fauua Maldive Arch., 1902, 1, part 3,
IT)-', text fig. 51.

Makemo, Paumotus; reef; Oct. 21, 1899; 1 <J, 2 ?.

Ponape, Carolines; reef; Feb. 11, 1900; 2 9 ovigerous.

1 6% 3 ? are of the size described by Borradaile, and agree with his
description but not entirely with his figure. The carapace is widest at
the penultimate tooth, the trough on the propodal segments of the legs
extends the whole length of the segment, but the propodi are shorter
and dactyli longer than shown in the figure. A larger ?, 5.3 x 8 mm.,
soft shell, from Makemo, has more marked characteristics. The surface is
more uneven, the areolae being more raised, the depressions on the upper
surface of the palms are very deep, as on the legs.

Cycloxanthops cavatus, sp. nov.
Plate 5, Fig. 8; PI. 6, Figs. 3, 3 a.

Carapace about f as long as broad ; posterior half level, anterior half
strongly deflexed; surface very uneven. On the anterior half are six
longitudinal elevations ; two small elevations on inner branchial region ;
a transverse ridge runs inward from the third and fourth teeth of the sharp
lateral border. Between the first and second teeth (orbital angle not in-
cluded), and just above the margin, there is a deep circular pit ; less strik-
ing depressions separate the other teeth. Surface closely granulate.

Front deflexed, margin slightly convex, median notch small, orbital
angle separated by a rectangular notch.

Basal joint of antenna touching the front with its inner angle ; movable
portion crowded between the front and the orbital angle. Anterior margin
of merus of maxilliped concave ; outer angle a produced rounded lobe.

Only the right cheliped is present ; its surface is closely granulate and
very uneven, like that of the carapace. Upper surface of wrist and hand
covered with depressions separated by irregular ridges, which form three
nodulous crests on the hand ; outer surface with two additional granulate
ridges. Fingers short, light-colored, grooved, not gaping, prehensile teeth
low, upper edge of dactylus thin, sharp.

Merus of legs with a thin upper crest ; carpus and propodus bicristate.

42 THE BEACHYUKA.

Dimensions : — <? type, length 4.7 mm., width 6.6 mm.

Type locality : — Fakarava Island, Paumotus ; outer reef; Oct. 12, 1899 ;
1 $ (Cat. No. 32,848, U. S. N. M.).

This species has much the shape of C. punetatus (Haswell),1 but the
surface is more uneven, and the front is distinctly separated from the
inner angle of the orbit, which is not the case in punetatus.

Etisus laevimanus Eandall.

Etisus laevimanus Alcock, 1898, 67, 131 .

Borabora, Society Islands ; shore and fringing reef ; Nov. 17, 1899; 1 £.
Lifu; shore; Dec. 13, 1899; 1 <?.

Etisodes electra (Herbst).

Etisodes electra Alcock, 1898, 67, 133.

Fakarava Id., Paumotus ; outer reef; Oct. 12, 1899; 1 S.
Tara-Tari Id.; shore, reef; Jan. 6, 1900; 4 <?, 3 9.

Actaea tomentOSa (Milne Edwards).

Actaea tomentosa Alcock, 1898, 67, 140.

Ena, Tonga Group; reef; Nov. 20, 1899; 2 <J, 1 ?.

Ponape, Caroline Ids.; reef; Feb.ll, 12, 1900; 5 $, 7 9 (3 ovig.).

Actaea affinis (Dana).

Actaeodes affinis Dana, Crust. IT. S. Expl. Exped., 1852, 1, 197 ; atlas, 1855, pi. 11, fig. 3.

Makemo, Paumotus; reef; Oct. 21, 1899; 2 <?.
Actaea hirsutissima (Euppell).

Actaea hirsutissima Alcock, 1898, 67, 141.

Papeete, Tahiti ; shore; Nov. 9, 1899; 1 9.

Borabora, Society Islands; shore and fringing reef; Nov. 17, 1899;
3 <?, 2 9, 1 juv.

1 Proc. Linn. Soc. N. S. Wales, 1881, 6, 752.

PILUMNIDAE. 43

Actaea remota, sp. nov.
PL 1, Fig. o ■ PI. 7, Fig. l.

Carapace broad, about | as long as broad, tabulated all over, lobules low
and flat, the grooves between them smooth and covered with short hair,
the lobules themselves covered with small pearly granules, the narrow
interspaces filled with hair no higher than the granules and similar to
that between the lobules. Mesogastric region undivided ; protogastric
regions divided lengthwise into two lobules. Cardiac region undivided.
Branchial regions each with about nine lobules. Orbital region marked
off by a furrow. Intestinal region more finely granulate.

Front strongly dellexed, moderately arched, median emargination not
discernible, owing to a break in the carapace. Orbit with one fissure
below, two above. Lateral lobes four, shallow, the first united with the
orbital angle, the grooves continued on the under surface, which is finely
granulate and almost naked.

The left cheliped is missing. In the right one, the outer surface of the
wrist and the proximal end of the upper surface of the hand are indistinctly
lobulate. The granulation of wrist and hand is less dense, the hairs more
numerous. Dactylus granulous and hairy at base. Both fingers white,
hollowed at tip. Legs granulate and pilose, but not lobulate; carpal joints
with a longitudinal groove.

Dimensions : — Type, length 6 mm., width 8.7 mm.

T/jpe locality: — Easter Island; shore; Dec. 20, 1904; 1^ (Cat. No.
32,849, U. S. N. M.).

This species appears to be nearest A. lata Borradaile,1 which, however, has
long hairs mixed with the short ones, and the fingers pointed and black in
color.

Actaea rufopunctata (Milue Edwards).
Actaea rufopunctata Alcock, 1898, 67, 142.

Papeete, Tahiti; reef; Sept. 28, 1899; 1 ?.
Makemo, Paumotus ; reef; Oct. 21, 1899; 1 <?.
Funafuti, Ellice Id. ; shore ; Dec. 25, 1899 ; 1 <?.

1 Fauna & Geog. Maldive & Laccadive Arch., 1902, 1, pt. 3, 255, text fig. 53.

44 THE BRACHYTTRA.

Actaea cavipes (Dana).
PI. 1, Fig. 2.

Actaea cavipes Alcock, 1898, 67, 147.

Rangiroald.; beach; Sept. 21, 1899; 1 <?.

Fakarava, Paumotus ; shoal in lagoon ; Oct. 11, 1899 ; 3 <?.

Fakarava; outer reef; Oct. 12, 1899; 2 <?, 1 2.

Borabora Ids., Society Group; fringing reef; Nov. 17, 1899; 5 3, 2 juv.

Funafuti, Ellice Ids.; reef; Dec. 24, 1899; 1 <?, 1 <?.

Tari-Tari Id.; shore, reef; Jan. 6, 1900; 2 <?. 3 ?.

Daira perlata (Herbst).

Daira perlata Alcock, 1900, 67, 155.

Papeete, Tahiti ; reef; Sept. 28, 1899 ; 3 juv.

Xanthias lamarckii (Milne Edwards).

Xanthodes lamarckii Alcock, 1898, 67, 157.

Papeete, Tahiti; reef; Sept. 28, 1899; 1 <?, 1 ?.

Fakarava Id., Paumotus; outer reef; Oct. 12, 1899; 1 <?, 4 <? (1 ovig.),
1 juv.

Makemo, Paumotus; reef; Oct. 21, 1899; 2 <?, 2 <?.

Borabora Id., Society Group; fringing reef; Nov. 17, 1899 ; 2 S, 2 ?.

Xanthias ponapensis, sp. nov.
PL 7, Figs. 5, 5 a.

The carapace is almost smooth, punctate, microscopically granulous,
granules more discernible along the antero-lateral margin. Orbital region
marked off by a groove, gastric region and its subdivisions well delimited,
otherwise the carapace is scarcely divided. Frontal lobes faintly sinuous,
their outer angles rectangular, and separated from the orbit by a rectangular
notch. Antero-lateral margin thick; teeth four (besides the orbital angle),
the first minute and distant from the orbit, the third most prominent.

Chelipeds unequal, surface similar to that of the carapace ; merus roughly
granulous above, wrist and hand smooth to the eye, the larger punctae of
the hand arranged somewhat in longitudinal lines. Fingers stout, gaping at

PILUMNIDAE. 45

base in larger chela, color almost black, with tips lighter, color prolonged
very little on the palm and terminating in an oblique line. Legs hairy ;
merus joints spinulous above.

Dimensions: — <? type, length G.5 mm., width 9.7 mm., fronto-orbital
width 5.7 mm.

Distribution: — Papeete, Tahiti ; shore; Nov. 9, 1899; 4 immature.

Ponape, Carolines; reef; Feb. 11, 1900; 2 S (1 $ is type, Cat. No.
32,850, U. S. N. M.).

The young specimens from Papeete show much rougher carapace and
chelipeds than the adult, the roughness diminishing regularly with age.
They measure respectively 6.4, 5.5, 5.2, and 5 mm. in width. The firstHnen-
tioned has the larger palm smooth outside, a little granulous above, smaller
cheliped missing ; No. 2 has the larger palm also smooth outside, but more
granulous above, the smaller palm distinctly granulous outside and above ;
No. 3 has the larger palm a little rough outside as well as above, the smaller
palm very granulous; in No. 4 both palms are very rough, the smaller the
rougher. One would not believe the smallest specimen to be the same
species as the type, were there not intermediate stages.

This species is near X. flavescens Rathbun,1 from the Hawaiian Ids., but
the latter is wider and more areolated, the dark color of the pollex runs far
back and up on the palm, and the legs are nearly naked.

Xanthias notatus (Dana).

Xanthodes notatus Alcock, 1898, 67, 158.

Fakarava Id., Paumotus; outer reef; Oct. 12, 1899; 19 <?, 24 9 (2 ovig.).
Makemo, Paumotus; reef; Oct. 21, 1899; 1G S, 13 ? (4 ovig.).

Xanthias canaliculars Eathbun.

Xanthias canaliculus Eathbun, Bull. U. S. Fish Comm. for 1903 (1906) part 3, 850,
text fig. 17, pi. 9, fig. 12.

Makemo, Paumotus; reef; Oct. 21, 1899; 1 6*, 1 <?.

1 Bull U. S. Fish Comm. for 1903 (1906), part 3, 855, text fig. 15, pi. 9, fig. 11.

46 THE BRACHYURA.

Chlorodiella niger (Forskal).

Chlorodius niger Alcock, 1898, 67, 1G0.

Rangiroa Id.; Mohican Reef; Sept. 23, 1899; 1 <?, 1 ?.

Fakarava, Paumotus ; shoal in lagoon ; Oct. 11, 1899; 1 <?, 1? (ovig.)

Fakarava, Paumotus; outer reef; Oct. 12, 1899; 6 <?, 8 9 (4 ovig.).

Makemo, Paumotus; reef; Oct. 21, 1899; 8 <?, 6 ?.

Borabora Id., Society Group; fringing reef; Nov. 17, 1899 ; 2 <?, 2 9.

Funafuti, Ellice Id. ; reef; Dec. 24, 1899; 2 <?, 2 9, 1 juv.

Tari-Tari Id.; shore, reef; Jan. 6, 1900; 4 8, 2 9.

Kusaie, Carolines ; 1900 ; 1 6* , 2 9 .

Chlorodiella laevissima (Dana).

Chlorodius laevissimus Alcock, 1898, 67, 161.

Rangiroa Id.; Mohican Reef; Sept. 23, 1899; 3 <?, 19.

Papeete, Tahiti; reef; Sept. 28, 1899; 39 (1 ovig.).

Papeete, Tahiti ; shore; Nov. 9, 1899; 2 $.

Fakarava Id., Paumotus ; outer reef ; Oct. 12, 1899; 1 <?, 3 9 (1 ovig.).

Makemo, Paumotus; reef; Oct. 21, 1899; 1 <?, 1 9 (ovig.).

Funafuti, Ellice Is.; reef; Dec. 24, 1899: 16 <?, 13 9, 3 juv.

Tari-Tari Id. ; shore; reef; Jan. 6, 1900; 1 <?, 1 9.

Phymodius ungulatUS (Milne Edwards).
Pis. 3, 4.

Phymodius ungulatus Alcock, 1898, 67, 162.

Phymodius monticulosus Alcock, op. cit., 163.

Phymodius obscurus Rathbun, Bull. U. S. Fish Conim. for 1903 (1906), 196, part. 3, 858.

Rangiroa Id.; Mohican Reef; Sept. 23, 1899 ; 2 $ 9.
Papeete, Tahiti; reef; Sept. 28, 1899 ; 1 juv.
Fakarava, Paumotus; shoal in lagoon; Oct. 11, 1899; 2 <J, 2 9.
Fakarava, Paumotus; outer reef; Oct. 12, 1899; 10 6% 14 9 (4 ovig.),
7 juv.

Makemo, Paumotus; reef; Oct. 21, 1899; 3 <?, 1 9.

Borabora, Society Ids.; shore and fringing reef; Nov. 17, 1899 ; 1 <?, 2 9.

Tongatabu ; reef and shore ; Nov. 30, 1899 ; 1 6* .

Funafuti, Ellice Id.; reef; Dec. 24, 1899; 1 <?, 1 9 juv.

PILUMXIDAE. 47

Tari-Tari Id.; shore and reef; Jan. 6, 1000 ; 1 <?, 2 ?.

Kusaie, Carolines ; 1900; 1 <$, 3 ? (ovig.).

I find it necessary on examination of considerable material to unite the
ungulatus form with the nionticuhsus or obscurus form of Phymodius, or, in lieu
of this, to make five or six intergrading sub-species.

In the absence of type specimens it is almost impossible to apply with
certainty the specific names already given.

The series before me is far from complete, but it indicates that each form
of cheliped described by Dana and others may be attached to any form of
carapace ; and that carapaces with similar areolation vary in relative width
and in the width of the front.

I have thought it desirable to tabulate some of these variations: —

48

THE BEACIIYUEA.

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PILUMNIDAE. 40

Chlorodopsis venusta, sp. nov.
PL 1, Fig. 5.

Carapace with a few, rather long, scattered hairs; legs with similar
but more numerous hairs, not concealing the sculpture ; chelipeds almost
naked.

Posterior third of carapace not areolated. Anterior § divided by smooth
grooves into regions and sub-regions, which are covered with very numer-
ous sharp granules ; these granules become much finer on the posterior
third.

Front cut into two rounded denticulate lobes, and outside of each a
narrow acute tooth. The two upper fissures of the orbit are faintly
marked.

The antero-lateral margin has besides the small orbital angle, four teeth,
the last three of which are similar, curved, spiniforin. Tooth E of Dana
is thick, acute, and fused with the adjacent area 1 L ; tooth N bears a few
denticles on its sides. 2 L, 3 L, and 4 L are distinct ; 5 L and 6 L are only
partially separated from each other. 1 L, 3 L, 4 L, and 1 R, the submarginal
areas, are high and rough with granules, but not spined. There is a
sharp subhepatic denticle. While the outer angle of the basal antennal
joint is prolonged into the orbital hiatus, the movable part of the antenna
is not excluded from the orbit.

Chelipeds unequal. Arm irregularly spined on anterior margin, sharply
rough above, finely granulate outside. Wrist coarsely and sharply granulate,
two spines at inner angle. Hands covered with crowded granules, which are
finer below and on the inside. Fingers gaping, three teeth on prehensile
edge of each, dactyl us with denticles outside towards the base.

Legs spinulous above.

Color in spirit mottled, variable, the dark part sometimes forming a vari-
able but bisymmetrical band from front to back. Legs with a few transverse
dark stripes. Fingers brown or black with light tips.

Dimensions: — Type <?, length 6.] mm., width 10.3 mm.

Distribution : —

Fakarava Id., Paumotus ; outer reef; Oct. 12, 1800; 3 <$.

Makemo, Paumotus; reef ; Oct. 21, 1800 ; 0 <?, 6 9, (1 <? type, Cat. No.
32,851, U. S. N. M.).

50 THE BEACHYTJRA.

Funafuti, Ellice Group ; reef ; Dec. 24, 1899 ; 1 juv.

This species is closely related to C. melanochira A. Milne Edwards ' and to
C. wood-masoni Alcock.'2 It is smaller, less hairy, and more delicately
marked than C melanochira; the second antero-lateral tooth (the first after
the orbital angle) is not separated from the adjoining area ; the fourth and
fifth teeth are simple, and the hind part of the carapace is not grooved as in
that species. C. wood-masoni has fewer denticles on the frontal lobes (7 in-
stead of 15 to 20) ; a spiniform second tooth ; a spine on each of the four
submarginal areas ; fewer tubercles or granules on the chelipeds.

Chlorodopsis spinipes (Heller).
PI. 2, Fig. 5.

Chlorodopsi3 spinipes Alcock, 1898, 67, 169.

Rangiroa Id.; Mohican Reef; Sept. 23, 1899; 1 $, 1 ?.
Fakarava Id., Paumotus ; outer reef; Oct. 12, 1899 ;4 5 (a ovig.).
Makemo, Paumotus; reef; Oct. 21, 1899; 2 ?.

Borabora Id., Society Group; fringing reef; Nov. 17, 1899; 5 £,8 ?.
Funafuti, Ellice Id.; reef; Dec. 24, 1899; 1 <f, 2 ?.
All the specimens have three antero-lateral spines, besides the orbital
spine ; just back of the latter is a small subhepatic spine.

Chlorodopsis scabricula (Dana).

PI. 1, Fig. 3; PI. 9, Fig. 5.

Chlorodopsis scabricula Eathbun, Bull. U. S. Fish Coram, for 1903 (1906), part 3, 859.

Papeete, Tahiti ; reef; Sept. 28, 1899 ; 2 ? immature, 1 young.

These specimens are the same species as the young 3 from Honolulu,
which I referred to C. scabricula (loc. cit.), and I think that they are probably
Dana's scabricula.

The four spines of the side margin are similar to each other (E and S of
Dana), being smaller than the others. The four lobules adjacent to these
spines are high and their summits are denticulated.

i Nouv. Arch. Mus. Hist. Nat. Paris, 1873, 9, 228, pi. 8, fig. 5.

2 Journ. Asiat. Soc. Bengal, 1898, 67, 170. Illus. Zool. Investigator, Crust, pt. 7, pi. 37, fig. 7.

PILUMNIDAE. 51

In the two larger specimens, the outer angle of the basal antennal joint
falls short considerably of the end of the inner suborbital tooth, while in
the two smaller specimens that angle reaches the end of the tooth.

Cyclodius ornatus Dana.

PI. 5, Fig. 5; PI. 7, Fig. 8.

Cyclodius ornatus Dana, Proc. Acad. Nat. Sci. Phil., 1852, 80; Crust. U. S. Expl.

Exped., 1852, 1, 223; atlas, 1855, pi. 12, figs. 11 a-<j.
Chlorodopsis (Cyclodius) ornata Alcock, 1898, 67, 171.

Fakarava Id., Paumotus ; outer reef; Oct. 12, 1899 ; 1 9 immature.

Papeete ; shore ; Nov. 9, 1899 ; 1 o* juv.

Tari-Tari Id.; shore, reef; Jan. 6, 1900 ; 1 9 immature, 1 <? juv.

The largest specimens measure as follows : —

9, Tari-Tari, length 6.7 mm., width 8.8 mm., proportion 1 : 1.31.

9, Fakarava, length 6 mm., width 7-7 mm., proportion 1 : 1.28.

Lateral teeth N, T, and S are long, slender, and alike ; tooth E is similar,
but smaller in three specimens; in the young o* from Tari-Tari (4 mm. wide)
tooth E is not spiniform. Subdivisions of gastric region well marked, except
in the last-mentioned specimen. Each middle lobe of the front has 8 or
10 denticles, each lateral lobe 3 or 4.

Fig. 11/ of Dana represents the abdomen of a 9.

Cyclodius gracilis Dana.
PI. 1, Fig 10 ; PI. 7, Fig. 7.

Cyclodius gracilis Dana, Proc. Acad. Nat. Sci. Phil., 1852, 80 ; Crust. U. S. Expl. Exped.,
1S52, 1, 224 ; atlas, 1855, pi. 13, figs. 12 a aud b.

Funafuti; reef; Dec. 24, 1899; 2 <?, 1 9, all young.

The largest specimen, the 9, measures 3.8 x 5.5 mm., or a proportion
of 1 : 1.44. This is a greater width than that given by Dana in the text,
but corresponds to his figure. While strongly resembling C. ornatus, it is
less deeply areolated (specimens of nearly equal size compared), the front
as a whole is less prominent, its margin more finely denticulated, its outer
lobules are smaller.

52 THE BEACHYUEA.

Pilodius paumotensis, sp. nov.
PL 8, Figs. 2,ga,8 b.

Surface covered with a thin coat of soft, downy hairs, some of which
are very long, and most of which proceed from fine granules. Carapace
| as long as it is broad, regions plainly demarcated. Front convex, with a
large, median U-shaped notch ; and at the outer end a small, inconspicuous
tooth. Margin of front and orbits granulate. The two notches in the
superior margin of the orbit are small ; the one on the outer side is deep
and V-shaped ; outer angle of orbit not prominent. Behind it, on the
antero-lateral margin, are 4 spine-pointed teeth ; the first is low, the other
three are of good size ; all have a few denticles on their sides ; the last two
teeth or spines are equally prominent, the carapace having the same width
at these points. Parallel to the posterior margin, a row of fine bead gran-
ules. The postero-lateral surface, over which the posterior legs fold, is naked
and crossed by transverse and granulated lines. The basal segment of the
antenna touches with its inner angle the bent-down angle of the front ; the
outer angle of the segment does not reach the end of the inner orbital
angle ; the flagellum stands in the orbital hiatus.

Chelipeds unequal, especially in the <?. Exposed surface granulate and
hairy like the carapace, except the lower part of the palms, which is smooth
and naked. Anterior edge of arms granulate, and at the proximal extremity
one very short, blunt spine. A small spine at inner angle of wrist. Palms
stout, with convex lower margin. Basal half of dactylus rough and hairy.
Fingers gaping, prehensile edges with a few large teeth, tips very broad and
deep spoons. Ambulatory legs spinulous above.

All the specimens in alcohol are covered on the dorsal aspect with small
dark color spots.

Dimensions : — <? type, length 5.2 mm., width 8 mm.

Distribution : —

Fakarava Id., Paumotus; outer reef; Oct. 12, 1899; 3 <?, 3 ?.

Makemo, Paumotus; reef; Oct. 21, 1899 ; 1 <J type, 1 ? (Cat. No. 32,852,
U. S. N. M.).

This species has much in common with P. jmbescens Dana,1 but differs
from it in having the carapace and chelipeds finely rough, instead of the

1 Crust. U. S. Expl. Exped., 1852, 1, 217 ; atlas, 1855, pi. 12, fig. G a-d.

PILUMNIDAE. 53

carapace smooth and the chelipeds coarsely rough ; in the deep median
sinus of the front; in the denticulation of the lateral spines; in the lack of
prominent spines on the anterior border of the arm.

The genus Pilodius stands very near Pihunnus and Chlorodopsis ; it has the
aspect of a Pilumnus, but the fingers are spoon-shaped instead of pointed ;
the carapace is not so much subdivided intoareolets as in Chlorodopsis, where
the antero-lateral areolets are exceptionally rough and high. As for the
arrangement of antennae and orbits, it does not in Pilodius differ much from
some species of Chlorodopsis, although the movable part of the antenna is
excluded from the orbit in the typical species of the latter genus.

Cymo melanodactylus De Haan.

Cymo melanodactylus Alcock, 1898, 67, 174.

Fakarava Id., Paumotus ; outer reef; Oct. 12, 1899; 6 <?, 9 9 (4 ovig.).
Borabora Id., Society Group; fringing reef; Nov. 7, 1899; 1 <?, 1 juv.
Tari-Tari Id.; shore; Jan. 6, 1900; 1 $, 1 ?.

Cymo quadrilobatus Miers.
PI. 1, Fig. 7

Cymo quadrilobatus Alcock, 189S, 67, 175.

Funafuti, Ellice Ids. ; reef; Dec. 24, 1899; 1 S, 1 juv.
Funafuti, Ellice Ids. ; shore ; Dec. 25, 1899 ; 1 9 ovig.

OziUS ruguloSUS Stimpson.
Ozius rugulosus Stimpson, Proc. Acad. Nat. Sci. Phil., 1857, 9, 34.
Nomuka Iki, Tonga Group; shore; Dec. 2, 1899; 2 6\

OziUS guttatus Milne Edwards.

Ozius guttatus Milne Edwards, Hist. Nat. Crust., 1834, 1, 40G. A. Milne Edwards,
Nouv. Arch. Mus. Hist. Nat. Paris, 1873,9, 239, pi. 11, fig. 1.

Tongatabu; shore; Nov. 29, 1899; 1 <?, 1 carapace.

54 THE BRACHYURA.

Ozius hawaiiensis Rathbun.

Ozius hawaiiensia Rathbun, Proc. IT. S. Nat. Mus., 1902, 26, 76, text figs. 3 & 4; Bull.
U. S. Fish Comra. for 1903 (1906), part 3, 862.

Nukuhiva, Marquesas Ids.; shore, seine; Sept. 15-17,. 1899; 1 <?.

Rangiroa Id.; beach; Sept. 21, 1899; 1 <?.

Fakarava Id., Paumotus; outer reef; Oct. 12, 1899; 4 9.

Makemo, Paumotus; reef; Oct. 21, 1899; 5 <?, 19 ?.

Kusaie, Carolines; reef; Feb. 8, 1900; 5 <?, 4 ?.

Ozius tricarinatus, sp. nov.
PI. 2, Fig. 3.

Carapace If times as wide as long, very convex fore and aft, moderately
convex from side to side ; interregional depressions deep, surface irregularly
granulate and coarsely punctate, and near the antero-lateral margins eroded.
Lateral regions crossed by three blunt carinae ; the posterior of these is very
low and runs from the last side tooth somewhat obliquely inward toward the
widest part of the mesogastric region ; the next ridge is more oblique and
begins at the base of the penultimate tooth ; the anterior ridge begins at the
next tooth and is directed toward the middle of the orbit ; it is broken in
two at the middle, the two parts not in the same line.

The edge of the front has a submarginal groove and is cut into four
rather prominent subequal lobes, the median sinus narrower than the
lateral ; outer lobe separated from orbital angle by a furrow.

Antero-lateral margin blunt, cut into five teeth, the first of which is sep-
arated from the orbital margin by a broad furrow ; the first two teeth or
lobes are long, shallow, and subequal ; the third is as long but more distinctly
angled ; the fourth is shorter and most dentiform and stands at the widest
part of the carapace ; fifth tooth much less prominent.

The type and only adult specimen is a 9 in which the right cheliped or
the one which should be the larger, as it has the stout tooth at the
base of the dactyl, is abnormally reduced, being much shorter and also
narrower than the left one. This last is \\ times as long as carapace ;
surface of wrist and hand reticulated, punctate, and covered with flattened
granules.

PILUMNIDAE. 55

Dimensions: — Length of type 9 37.2 mm., width 59.5 mm.

Distribution : —

Nukuhiva, Marquesas Ids.; shore, seine; Sept. 15-17, 1899; 1 ? (type),
1 9 juv. (Cat. No. 32,853, U. S. N. M.).

Papeete, Tahiti; reef; Sept. 28, 1899; 1 <? juv.

In the two young specimens, the granules of the surface are almost
effaced, but the carapace appears more eroded, the teeth of the front are
less prominent, those of the sides more prominent than in the adult.
The chelipeds are very unequal, the fingers of the larger one gape
narrowly.

In the shape and number of the front and side teeth this species re-
sembles 0. verreauxii Saussure, which, however, is flatter and has only one
transverse crest.

Pilumnus andersoni de Man.

Pilumnua andersoni Rathbun, Bull. U. S. Fish Comm. for 1903 (1906), part 3, 863.

Funafuti, Ellice Ids.; reef; Dec. 24, 1899; 1 <?, 1 ?.

Ponape, Caroline Ids; reef; Feb. 11, 1900; 2 <?, 3 ? (1 ovigerous).

The specimens from Ponape have the first of the 3 lateral spines further
from the orbit than in typical andersoni, and the antero-lateral margin cor-
respondingly longer. All of the 7 individuals are small, the largest measuring
7.3 mm. in width.

Pilumnus Cursor A. Milne Edwards.
Pilumnus cursor Alcock, 1898, 67, 195.

Funafuti; reef; Dec. 24, 1S99 ; 1 immature ?, which agrees with the
description given by de Man1 but has shorter legs than represented in
the figure by A. Milne Edwards.2 The specimen is only 4.2 mm. long,
the second or longest ambulatory leg is 7.5 mm. long.

1 Arch. f. Naturg., 1887, 53, part 1, 299.

2 Nouv. Arch. Mus. Hist. Nat., 1873, 9, pi. 9, fig. 4.

56 THE BRACHYTJRA.

Pilumnus globosus Dana.

Pilumnus globosus Dana, Proc. Acad. Nat. Sci. Phil., 1852, 81; Crust. IT. S. Expl.
Exped., 1852, 1, 236 ; atlas, 1855, pi. 13, fig. 10. De Man, Notes Leyden Mus., 1890,
12, 59, pi. 3, fig. 3.

Papeete, Tahiti; reef; Sept. 28, 1899; 1 adult 9, little smaller than
the type, measuring 6.2 mm. long and 8 mm. wide. It differs a little from
de Man's description. The hairs of the carapace arise from rather large
and irregular punctae ; granules few. The margin of the front continues
the arch of the antero-lateral borders, and has a wide emargination. The
three lateral projections are not granules, but small spines. Palms granu-
late all over the outer surface, but not thickly so ; fingers grooved ; basal
half of dactylus granulate in both chelae, and one or two granules on outer
surface of immovable finger. Fingers light brown ; the color line on the
propodus is at right angles to its lower margin ; the pollex is as broad at
base as it is long.

Pilumnus tahitensis de Man.

Pilumnus tahitensis de Man, Notes Leyden Mus., 1890, 12, 01, pi. 3, figs. 4, 4 a, 4 b.

Fakarava Id., Paumotus ; outer reef; Oct. 12, 1899; 1 <?, 2 ?.

The largest specimen, an ovigerous ?, is smaller than the types,
measuring 6.8 mm. long by 9 mm. wide. The chelipeds are equal in
all the specimens.

Actumnus integerrimus (Dana).

PI. 1, Fig. 12; PL 8, Figs. 3,3 a, 3 b.

Actaeodes ? integerrimus Dana, Crust. U. S. Expl. Exped., 1852, 1, 201 ; atlas, 1855,
pi. 11. fig. 7.

Papeete, Tahiti ; reef; Sept. 28, 1899; 1 ?.

Fakarava Id., Paumotus; outer reef; Oct. 12, 1899 ; 1 9.

Carapace convex, not much broader than long, thick ; side margins
entire, granulate, with faint traces of one or two teeth ; surface smooth to
the naked eye with scarcely any trace of regions, and with a few scattered
hairs ; under the lens the anterior two thirds is seen to be very sparsely
and finely granulous.

Front with two oblique lobes separated by a median V, outer angles

PILUMN1DAE. 57

bent down, touching the basal joint of antenna. Eyes large ; orbital
notches obscure above, absent below outer angle.

Palatal ridge present, but not strong.

Chelipeds unequal, rough with sharp granules; lower surface of larger
hand almost smooth ; ringers spoon-shaped, rough at base, gaping, light-
colored. In the smaller specimen (Papeete) the outer face of the hand is
largely smooth. Legs almost smooth, sparsely hairy, meropodites slightly
spinulous above, dactyli with long slender point.

Dimensions: — Fakarava, length 3.3, width 4.5 mm.; width of front 16 mm.

I think that this is Dana's species, as the carapace appears smooth and
entire, but the hairs do not form the pattern shown in his figure.

Eriphia sebana (Shaw).

Cancer sebanus Shaw, in Shaw & Nodrler, Nat. Misc., 1S03, 15, pi. 591.
Eriphia sebaua Rathbuu, Bull. TJ. S. Fish Comm. for 1903 (1906), part 3, p. 865.

Rangiroa Id.; shore; Sept. 21, 22, 1899; 2 S, 1 ? ; "eyes vermilion,
ocellus black."

Makatea Id. ; shore ; Oct. 6, 1899 ; 1 ?.

Fakarava, Paumotus ; reef, sea beach ; Oct. 13, 1899 : 1 ? ovig.
Makerao Id., Paumotus ; Oct. 20, 1899 ; 1 S.
Makemo Id., Paumotus; reef; Oct. 21, 1899; 1 $ juv.
Nomuka Iki, Tonga Group; shore; Dec. 2, 1899 ; 1 <?, 1 ?.
Tarawa Id., Gilbert Group ; shore ; Jan. 3, 1900 ; 1 ?.
Kusaie, Caroline Ids. ; reef; Feb. 8, 1900; 2 juv.
Manga Reva, Motus ; Feb. 3, 1905 ; 1 ? ovigerous.

Eriphia scabricula Dana.

Eriphia scabricula Dana, Crust. U. S. Expl. Exped., 1852, 1, 247 ; atlas, 1855, pi. 14,
fig. 5 a and b.

Fakarava Id., Paumotus; outer reef; Oct. 12, 1899 ; 1 ? .

Trapezia l rufopunctata (Herbst).

Trapezia rufopunctata Alcock, 189S, 67, 222.

Makemo, Paumotus; reef; Oct 21, 1899; 2 £, 2 $ ovig.
Funafuti, Ellice Ids. ; shore ; Dec. 25, 1899 ; 2 ? (1 ovig.)

1 Trapezia Latreille 1S25 = Grapsillus MacLeay, 1838. Trapezia, derived from rpantfrvs, table-
like, may not conflict with Trapezium (Humphrey, 1797), from Tpcmi£iou a little table.

58 THE BEACHYURA.

Trapezia cymodoce (iierbst).

The variations shown in the collection from the South Pacific Islands
make it necessary to unite under one specific name the many forms of the
cymodoce ferruginea group. ( Cf. Alcock, 67. pp. 219-222.)

Trapezia cymodoce dentata (MacLeay).

Trapezia ferruginea dentata Ortmann, Zool. Jahrb., Syst., 1897, 10, 204.

Rangiroa, Paumotus; beach; Sept. 21, 1899; 1 <?.

Fakarava, Paumotus; outer reef ; Oct. 12, 1899; 1 <?.

Makemo, Paumotus ; reef; Oct. 21, 1899 ; 4 <?, 6 9 (5 ovig.).

Borabora, Society Group ; fringing reef ; Nov. 17, 1899 ; 1 9 ovig.

Funafuti, shore ; Dec. 25, 1899 ; 1 9, ovig.

These are but slightly removed from T. cymodoce ; they lack the acute upper
border on the palm, and the hairy coating on the outer face of the palm.

Funafuti; reef; Dec. 24, 1899 ; 5 S, 8 9 (4 ovig.), 3 juv. ; varying toward
T. cymodoce. The outer face of the chelipeds is densely covered with downy
hair, but the upper edge of the palms is obtuse, and the teeth of the front
are not deeply separated.

Trapezia cymodoce ferruginea Latreille.

Trapezia ferruginea Alcock, 1898, 67, 220.

Rangiroa, Paumotus ; beach ; Sept. 21, 1899 ; 2 9 ovig.

Fakarava, Paumotus ; outer reef; Oct. 12, 1899 ; 1 9 ovig.

Makemo, Paumotus; reef; Oct. 21, 1899; 2 <?, 1 9 ovig.

Funafuti, Ellice Id. ; reef; Dec. 24, 1899 ; 1 <?.

Funafuti; shore; Dec. 25, 18S9 ; 2 9 (1 ovig.). Variety with palms
hairy outside, but not acute above.

Rangiroa Id. ; Mohican reef; Sept. 23, 1899 ; 1 £ ; and

Easter Island; shore; Dec, 20, 1904; 1 £, 1 9 ovig. Variety with
chelipeds covered with fine spots.

Rangiroa Id. ; Mohican reef; Sept. 23, 1899; 1 <?, 1 9 ovig., holding in
the right claw a young anemone. Variety with dark band across the front,
palms reticulated and legs spotted. This is the guttata form of Alcock, 67,
p. 220.

PILUMNIDAE. 59

The following specimens are similar to the last, but the spots on the legs
are absent, perhaps obliterated from long preservation :

Fakarava, Paumotus; shoal in lagoon ; Oct. 11, 1899; 1 <?, 1 9 ovigerous.
Borabora Id., Society Group; fringing reef; Nov. 17, 1899; 1 <?.

Trapezia cymodoce areolata Dana.

Trapezia ferruginea var. areolata Alcock, 1898, 67, 221.

V avau ; reef; Dec. 5, 1899; 1 i, 1 9 ovig.
Funafuti; reef; Dec. 24, 1899; 3 $, 2 9 (1 ovig.).

Trapezia cymodoce maculata (MacLeay).

Trapezia maculata Alcock, 1898, 67, 221.

Makemo, Paumotus ; reef ; Oct. 21, 1899; 1 9 immature; spots few.

Variety : — At the same locality, an immature 9 agreeing entirely in form
with the above, but with quite different markings ; the carapace and cheli-
peds are covered with reticulating brown (in alcohol) lines, legs dotted with
minute spots of brown.

Of the form maculata, it may be said that it usually has the prominent
front, the sharp side-tooth, the carpal spine, and the brilliant spots on cara-
pace, chelipeds, and legs ; but these characters run into those of the inter-
media form, which has a less prominent front, blunt side-tooth, blunt-angled
wrist, reticulated palms, while carapace and legs are spotted.

Trapezia digitalis speciosa Dana.

Trapezia speciosa Dana, Crust. U. S. Expl. Exped., 1852, 1, 253 ; atlas, 1855, pi. 15,
fig. 1.

Papeete, Tahiti; reef; Sept. 28, 1899; 1 i, 1 9 ovig.
Fakarava, Paumotus; outer reef; 10 $, 10 9 (9 ovig.).
Makemo, Paumotus; reef; Oct. 21, 1899; 1 <?, 1 9-

Trapezia digitalis bella Dana.

Trapezia bella Dana, Crust. U. S. Expl. Exped., 1852, 1, 254 ; atlas, 1855. pi. 15, fig 2.
Papeete, Tahiti; reef; Sept. 28, 1899; 1 <?.

60 THE BRACHYUEA.

Tetralia glaberrima (Herbst).

Tetralia glaberrima Alcock, 1898, 67, 223.

Papeete, Tahiti ; reef; Sept. 28, 1899; 1 8, 2 9 ovig.

Fakarava, Paumotus ; outer reef; Oct. 12, 1899; 4 <?, 7 9 (3 ovig.).

Makemo, Paumotus; reef; Oct. 21, 1899; 1 <?, 6 9 ovig.

Domecia hispida Eydoux and Souleyet.
Domecia hispida Alcock, 1898, 67, 230.

Makemo, Paumotus; reef; Oct. 21, 1899; 1 3, 3 9 (1 ovig.).
Funafuti, Ellice Is.; reef; Dec. 24, 1899; 1 £, 2 ? (1 ovig.).

Lybia caestifera (Alcock).

Melia caestifer Alcock, 1898, 67, 231. Illus. Zool. Investigator, Crust., 1899, part 7,
pi. 38, fig. 4.

Papeete, Tahiti; reef; Sept. 28, 1899; 1 <?.

PORTUNIDAE.

Caphyra rotundifrons (A. Milne Edwards).
PI. 1, Fig. 4.

Camptonyx rotundifrons A. Milne Edwards, Nouv. Arch. Mus. Hist. Nat. Paris, 18G9, 5,
156, pi. 7, figs. 11, 12.

Papeete, Tahiti; reef; Sept. 28, 1899; 1 9 ovig.

Catoptrus nitidus A. Milne Edwards.

Catoptrus nitidus Alcock, 1900, 69, 387.

Makemo, Paumotus; reef; Oct. 21, 1899; 1 ?.
Funafuti, Ellice Ids.; reef; Dec. 24, 1899; 1 &.

Portunus (Achelous) granulatus (Milne Edwards).

Neptunus (Achelous) granulatus Alcock, 1899, 68, 45.

Fakarava Id. ; Paumotus ; outer reef; Oct. 12, 1899 ; 1 <?.
Borabora, Society Ids. ; shore and fringing reef; Nov. 17, 1899 ; 1 <?, 1 ? .
Funafuti, Ellice Ids. ; shore, seine ; Dec. 24, 1899 ; 2 <?, 1 ?.
Butaritari, Gilbert Group; lagoon, surface ; Jan. G, 1900; 1 juv.
Mela, Carolines; shore, seine; Feb. 16, 1900, 3 9 (1 ovig.).

1'OKTUNIDAE. 61

Callinectes alexandri, sp. nov.

PI. 2, Fig. 1 ; PI. 9, Figs. 3, 3 a,. lb.

Young male. Extreme width of carapace about 2§ x the median length.
Regions well marked, as well as the two areolae at the inner angle of l he
branchial region. Granules of dorsal surface squamiform and conspicuous;
most scattered on the anterior third, finest and most crowded on the pos-
terior third. The granules of the customary ridges (two gastric and one
branchial) are more beadlike. The median length of the intramedial region,
or that part of the gastric region situated behind the second ridge, is nearly
| its anterior width.

Frontal teeth four, besides the orbital pair. Median pair tuberculiform,
not more than \ the area of the triangular, obtuse, outer pair. Inner orbital
tooth lobiform and a little less advanced than the median teeth. Superior
fissures of orbit well marked, but closed ; inner suborbital lobe subacute, not
very prominent.

The outer orbital tooth, or the first tooth of the lateral series, is equi-
lateral or subacute. Teeth 2 to 7 inclusive are saw-teeth, that is, shorter
on the anterior than on the posterior margin ; the second, third, and fourth
are acute, the fourth, fifth, and sixth are acuminate and slightly concave on
the posterior margin. Eighth tooth curved forward, acuminate. The mid-
rib of the ninth projection, or the lateral spine, is quite transverse ; its length
is about \ of the carapace, exclusive of the lateral spines.

The shape of the abdomen of the young male is probably not that of
the adult; the sixth segment tapers gradually to the distal end, the seventh
is equilateral.

Chelipc-ds very finely rugose, the costae of wrist and hand prominent and
more closely granulate; three strong curved spines on the anterior margin
of the merus ; posterior margin unarmed. The outer spine of the carpus is
well developed, though much smaller than the inner. Of the two spines
of the palm, the proximal is curved, the distal is very slender.

Dimensions: — Length of J, type, 14.8 mm.; entire width, 3-5.7 mm.;
length of lateral spine, 5 mm.

Distribution : —

Papeete, Tahiti; shore; Nov. 9, 1S99; 1 <?,juv., type (Cat. No. 32,854,
U. S. N. M.).

Suva, Fijis; shore; Dec. 13, 1899; 1 ?, juv.

62 THE BEACHYUEA.

Thalamonyx parvidens, sp. nov.
PI. 5, Fig. 9.

Carapace not | as long as broad ; surface minutely granulate and covered
with fine hairs easily rubbed off. Besides the three gastric ridges, the last
of which is continued to the posterior lateral tooth, there is a short ridge
on each branchial region.

Front prominent, convex, a well-marked median V.

Antero-lateral borders little oblique ; of the five teeth, the last two are
smaller than the others, the fourth being the shortest, the fifth spiniform.

Diameter of orbit about \ the inter-orbital space.

Chelipeds granulate, especially the arm and wrist. Arm rugose-denticu-
late above ; inner border with three graduated teeth and numerous denticles.
Wrist costate, three of the costae terminating in low, blunt projections ; a
strong spine at inner angle. Chelae very unequal ; two costae on upper sur-
face, the inner one with a spine at its middle, outer one ending in a tubercle
not far-from tbe middle in the £ ; in a sharp spine in the 9 , and occasionally
in the £ ; spine near wrist usually blunt in the £ , sharp in the 9.

Merus of last pair of legs 2^ x as long as broad.

Sixth segment of £ abdomen f as long as broad.

Dimensions: — Length of type £, 15.2 mm.; width, 18.7 mm.

Distribution : —

Truk, Carolines; shore, in seine; Feb. 16, 1900; 12 £, 89 (1 ovig.).
1 £ is type (Cat. No. 32,855, U. S. N. M.).

Mela, Carolines; shore, in seine; Feb. 16, 1900; 9 £, 8 9 (3 ovig.).
One of the latter is only 10.3 mm. in width.

This species differs from T. danae (A. Milne Edwards)1 and T. grarilvpes
A. Milne Edwards 2 in the wider carapace, unequal side-teeth, and smoother
chelipeds, and from T. gracilipes in the smaller orbit.

Thalamita crenata Euppell.

Thalamita crenata, Alcock, 1899, 68, 7G.

Borabora, Society Ids.; shore and fringing reef; Nov. 17, 1899; 2 £,
5 9 (2 ovig.).

1 Nouv. Arch. Mus. Hist. Nat. Pans, 1869, 5, 153, pi. 7, figs. G, 7.

2 Nouv. Arch. Mus. Hist. Nat. Paris, 1S73, 9, 109, pi. 4, fig. 3.

PORTUNIDA K. 63

Thalamita coeruleipes Jacquinot.

Thalamita coeruleipes Jacquinot, in Jacquinot & Lucas, Voyage au Pole Slid, Zool., 3,
Crust., 1853, 53; atlas, 1852 (?), pi. 5, fig. 6.

Fakarava Id., Paumotus; reef; Oct. 12, 1899; 1 <? ; also Society Ids.,
A. Garrett coll. (U. S. N. M.).

This species is very near T. prymna (Herbst), but the fourth lateral tooth
is not much smaller than the other teeth.

Thalamita admete Herbst.

Cancer admete Herbst, Natur. d. Krabben u. Krebse, 1803, 3, part 3, 40, pi. 57, fig. 1.
Thalamita admeta Alcock, 1899, 68, 82 (part). Borradaile, Fauna, Maldive Arch., 1902,

1, 202 (var. A.).
Thalamita admete Rathbun, Bull. U. S. Pish Coram, for 1903 (1906), part 3, 874.

Fakarava Island, Paumotus; outer reef; Oct. 12, 1899 ; 106*, 13 ?, 8 of
which are ovigerous.

Makemo, Paumotus ; reef; Oct. 21, 1899 ; 1 $, 1 9, 2 juv.

Tongatabu ; reef and shore ; Nov. 30, 1899 ; 1 6*, 1 9.

Funafuti, Ellice Ids. ; reef ; Dec. 24, 1899 ; 19 ovig., 1 juv.

Mela, Carolines ; shore, in seine ; Feb. 16, 1900 ; 1 9 shedding its shell.

The fourth side tooth is smaller, more rudimentary, than in specimens
recorded in 1906 (loc. cit.), but otherwise there are no differences, so that
there is perhaps no dividing line between the form with the 4th tooth almost
undiscernible and the typical form with a well-developed tooth.

Thalamita gardineri Borradaile, variety.
Thalamita gardineri Borradaile, Pauna Maldive Arch., 1902, 1, 205, text fig. 36.

Fakarava Id., Paumotus ; outer reef; Oct. 12, 1899; 1 <?, 1 9 (ovig.).

Length of S 12.1, width 19.5, fronto-orbital width 14.2 mm.

Differs from typical gardineri as follows : —

Carapace wider; length .62 of width instead of .76 of width. This
additional width of carapace, although without an increase in fronto-orbital
distance, gives the crab less of a Char//!>dis-\ike aspect.

The inner surface of the palm is almost smooth ; very fine squamiform
markings are visible with a lens ; the longitudinal ridge through the middle
is smooth in the larger cheliped, obscurely granulate in the smaller. (Cheli-
peds of <? wanting.)

64 THE BEACHYUKA.

Thalaniitoid.es quadridens A. Milne Edwards.

Thalamita (Thalamitoides) quadridens A. Milne Edwards, Nouv. Arch. Mus. Hist. Nat.,

1869, 5, 147, pi. 6, figs. 8-15.
Thalamitoides quadridens de Man, Arch. f. Naturg., 1887, 53, 1, p. 332.

Jaluit; lagoon; Jan. 1, 1900; 1 9 ovigerous, 14.5 mm. in width.
Carupa laeviuscula Heller.

Carupa laeviuscula Heller, Verh. zool. bot. Ges. Wien, 1862, 12, 520; Reise Novara,
Crust., 1865, 27, pi. 3, fig. 2 ; Alcock, 1899, 68, 26.

Makemo, Paumotus ; reef; Oct. 21, 1899 ; 1 <?.

INACHIDAE.

Menaethius monoceros (Latreille).

Menaetbius monoceros Alcock, 1895, 64, 197.

Fakarava Id., Paumotus; outer reef ; Oct. 12, 1899; 2 9 .
Funafuti, Ellice Id. ; reef; Dec. 24, 1899 ; 1 9.
Tari-Tari Id. ; shore, reef; Jan. 6, 1900 ; 1 <?.
Truk, Carolines; shore, seine ; Feb. 16, 1900; 2 <?, 1 9.
Mela, Carolines ; shore, seine ; Feb. 16, 1900 ; 2 <?.

Halimus borradailei, nom. nov.

Hyastenus elegans var. tenuicornis Borradaile, Proc. Zool. Soc. London, 1900, 574, pi.
40, fig. 2. Not Hyastenus (Chorilia) tenuicornis Pocock, Ann. Mag. Nat. Hist., 1890,
(6) 5, 76.

The form described by Borradaile as a variety of JI. elegans Miers,1 it
seems to me should be regarded as a distinct species, because of the different
build of the postocular lobes, the great width between the horns at their
base, as well as the different ornamentation of the dorsum.

On the reef at Funafuti, Dec. 24, 1899, was taken an immature 9 about
\ the size of Borradaile's examples from Roturaa. Of the six gastric tuber-
cles in his figure, only the outer pair are evident in our individual. In other
respects it agrees well enough with the figure, allowing for the difference in
size.

1 " Challenger " Kept., 18S6, 17, 58, pi. 0, fig. 3.

ENACHIDAE. 05

Perinea tumida Dana.

Perinea tumida Dana, Crust. U. S. Expl. Exped., 1852, 1, 114; atlas, 1855, pi. 4, fig. 1 a f.
Fakarava Id., Paumotus ; outer reef; Oct. 12, 1899 ; 2 9 gravid.

Schizophrys aspera (Milne Edwards).
Schizoptuys aspera Alcock, 1895, 64, 243.

Funafuti, Elliee Ids. ; shore ; Dec. 25, 1899 ; 1 ? juv.

Lophomicippa, gen. nov.
(X6(f>o<s, crest, in allusion to the legs ; Micippa, a generic name.)

Carapace suboblong, high, rounded behind ; front broad, almost vertically
deflexed. Eye-stalks long, corneae lai'ge, oval, chiefly ventral in position;
eyes filling the orbits, the margins of which are for the most part entire,
the broad basal joint of the antenna bidentate. Antennae exposed, 2nd and
3rd joints small.

Buccal cavity widened anteriorly. Merus of outer maxillipeds broader
than the ischium, its external angle expanded, and its internal angle notched
for the insertion of the palpus.

Chelipeds of adult $ slender, feeble, shorter than the carapace. Legs
diminishing rapidly in length, the merus joints broadly expanded, forming
together a deep, continuous border around and below the sides of the cara-
pace and concealing the chelipeds.

This genus unites the most striking characters of Micippa Leach ' of the
Indo-Pacific, and Hemus A. Milne Edwards 2 of tropical America.

It has the carapace of the former and the legs of the latter. The orbits
of Micippa are more tubular, while the carapace of Hemus is strongly nar-
rowed in front and the second and third joints of the antennae are very
large.

Type, and only species,

Lophomicippa limbata, sp. nov.

PI. 5, Fig. 3; PI. 6, Figs. 1-1 g.
Surface pubescent.
Carapace as wide as its superior length, narrowing a little anteriorly.

Zool. Misc., 1817, 3, 15. 2 Miss. Sci. Mexique, Crust., 1875, 88.

5

G6 THE BKACHYURA.

surface uneven, highest along the median line, hepatic region depressed, its
margin crenulate. A small spine at the postero-lateral angle, behind it a
spinule or granule; posterior margin bearing three lobes, the middle one
with four granules on its border, the lateral lobes smooth, naked, and
rounded, projecting downward between the bases of the last two legs.

Front steeply inclined, its lower margin convex in front view, concave in
ventral view, and fringed with long hair ; at either end of this margin there
is a small sharp forward-pointing spine ; side margins spinulous or granulous.

Basal joint of antenna large, smooth, with the exception of a crenulated
crest near and parallel to its union with the carapace ; this crest ends out-
wardly in a small tooth followed by a second tooth on the margin of the
orbit. Peduncle of antenna not reaching lower margin of front, fringed
with long hair, second joint expanded, third joint short, cylindrical.

Chelipeds smooth, shining ; in the 9 the chelae taper distally. In the
legs of the first pair the merus is longer than the sum of the next three
joints, its outer surface is concave, and it bears a small spine at the lower
distal ajigle. Carpus short, broad, propodus elongate, dactylus half as long
and strongly curved. Size of the merus diminishing from the first to the
fourth leg, that of the fourth being about half as long and | as wide as that
of the first leg, and a little shorter than the sum of the next three joints.

Abdomen of 9 thin, flat, 7-jointed.

Dimensions: — 9, length, from lower edge of front, 9.2 mm.; greatest
width, 8 mm. ; width at postorbital angles, 5.5 mm.

Type locality : — Makemo, Paumotus; reef; Oct. 21, 1899; 1 9 oviger-
ous (Cat. No. 32,856, U. S. N. M.).

PARTHENOPIDAE.

Parthenope (Parthenope) melana, sp. nov.
PI. 5, Fig. 6; PI. 6, Fig. 2.

Carapace ovate-pentagonal, little broader than long. A continuous lon-
gitudinal elevation on the gastric and cardiac regions; an oblique elevation
on the branchial region. A deep hollow at the inner angle of the branchial
region; a furrow either side of the hepatic region. The more elevated por-
tions are covered with berried tubercles ; depressions for the most part
smooth.

CALA1TIDAE. G7

Front inclined at an angle of about 45°; edge quinquedentate ; either
side of the blunt median tooth, there is a small tooth, and behind it a broad
shallow tooth. Constriction behind the orbits not sufficient, I think, to
place the species in the subgenus Rhinolambrus.

Hepatic region well marked.

Antero-lateral margin of branchial region armed with six tubercles, this
line being partially extended backward and upward on the postero-lateral
margin by three tubercles, the last of which is the largest tubercle of the
carapace. Posterior margin with two lines of tubercles, the terminal
tubercle of the submarginal row being the largest.

Chelipeds about 2| times as long as the carapace. Arm and hand mar-
gined with irregular teeth and tubercles which are granulated or berried.
Upper surface of arm with a row of tubercles ; upper and inner surfaces of
hand almost smooth. Outer surface of arm, wrist, and hand and inner sur-
face of arm tuberculous.

The slender ambulatory legs have the dactyli longer than the propodi.

Dimensions : — Length of ? 20 mm., width 21.3 mm.

Type locality : — Mela, Carolines; shore, seine; Feb. 16, 1900; 1 ? (Cat.
No. 32,857, U. S. N. M.).

This species is very near P. lippa (Lanchester)1 from the Malay Penin-
sula, but differs in the shorter propodal joints of the ambulatory legs, the
shorter front, the small size of the postero-lateral protuberance, the presence
of an oblique line of branchial tubercles.

CALAPPIDAE.

Calappa hepatica (Linnaeus).
Calappa hepatica Alcock, 1896, 65, 142.

Borabora, Society Islands ; shore and fringing reef ; Nov. 17, 1899 ; 1 <?,
1 ?.

Lifu; shore; Dec. 13, 1899; 3 <?.
Tari-Tari Island ; shore; Jan. 6, 1900; 1 S.

1 Proc. Zool. Soc. Loudou, 1901, part '2, 537, PL 33, fig. 1.

68 THE BEACHYUEA.

Matuta banksii Leach.

Matuta banksii Alcock, 189G, 65, 158, description, not M. picta Hess.

Nukuhiva, Marquesas Ids.; shore and seine; Sept. 15, 17, 1899; 2 <?,
5 ?, 2juv.

LEUCOSIIDAE.

Nucia gelida, sp. nov.
PI. 5, Fig, 4; PI. 9, Figs. 2-2 c.

Entire surface frosted with granules.

Carapace broader than long, roughly hexagonal with the pterygostomian
regions protuberant ; covered with tubercles, which toward the front and
sides become gradually elongated, forming blunt conical spines. Longest
spines atjateral angle, and at pterygostomian angle.

Front formed by two teeth separated by a furrow, and bearing each a
tubercle on the margin.

Orbit not concealing the eye, armed with a supraorbital and a sharp post-
orbital spine. A spine at the angle of the buccal cavity, and four below
the orbit. Two tubercles on the exognath of the outer maxilliped.

Chelipeds of 9 equal, merus having a few conical spines disposed in a
row along the outer margin and in a transverse series on the distal half of
the upper surface. Wrist and hand with a few tubercles above; fingers
with longitudinal lines of granulations.

The merus and carpus joints of the legs have each two protuberances on
the upper margin ; dactyli elongate, regularly tapering, horny tips trans-
parent.

9, Length 2.5 mm., width 3.5 mm.

Type bcality: — Fakarava Id., Paumotus ; outer reef; Oct. 12, 1899; I 9
ovigerous. (Cat. No. 32,858, U. S. N. M.)

Leucosides whitmeei (Miers).

Leucosia whitmeei Alcock, 1896, 65, 224.
Mela, Carolines; shore, seine; Feb. 16, 1900; 1 3.

riLUMMIDAK. 69

PANAMIC REGION.
OCYPODIDAE.

Ocypode gaudichaudii Milne Edwards and Lucas.

Ocypode gaudichaudii Milne Edwards and Lucas, D'Orbigny's Voy. l'Amer. Mend., 1843,
6, part 1, 2G ; 1857, 9, pi. 11, fig. 4.

Chatham Id., Galapagos ; shore ; Jan. 8, 1905 ; 2 ?.

GPvAPSIDAE.

Grapsus grapsus (Linnaeus).
Grapsua grapsus Rathbun, Bull. U. S. Fish Coram, for 1900 (1901), 2, 16, and synonymy.
Chatham Island, Galapagos Ids. ; shore ; Jan. 4, 1905 ; 1 <?, 3 9.

Planes minutus (Linnaeus).
Nautilograpsus minutus Kingsley, Proc. Acad. Nat. Sci. Phil., 1880, 202.

South of Gulf of California ; station 4587, surface; Oct. 12, 1904; 1 ?.
Off Guatemala; station 4605, surface; Oct. 17, 1904; 1 £.
Off Peru ; station 4649, surface; Nov. 10, 1904; 2 ?.

PILUMNIDAE.

Micropanope taboguillensis, sp. nov.

PI. 1, Fig. S; PI. 7, Figs. 3,3a.

Carapace subhexagonal, of moderate width, about 1^ x as broad as
long ; anterior half inclined downward ; posterior half flat ; in front of
cardiac region the regions are distinct, the protogastric areas anteriorly sub-
divided longitudinally. Surface rough with granulated rugae on anterior
two thirds, posteriorly nearly smooth. Front narrow, less than \ the width
of the carapace, prominent, divided by a large V-shaped notch into 2 lobes
with oblique and slightly concave margins. Edge of front, orbits, and antero-
lateral margins finely granulate. Outer angle of orbit not prominent nor
dentiform. Tooth E of Dana small and distant from the orbit, the interven-
ing space straight. Teeth N, T, & S of good size, subequal, acute, N some-
what curved. A small subhepatic clump of granules.

70 THE BKACHYURA.

Outer sinus of orbit V-shaped ; tooth at inner angle thickened.

Chehpeds strong, unequal, rough with sharp granules which are very
large on the wrist and hand.

Inner angle of wrist blunt, not produced ; below it a sharp tooth ; a deep
sulcus parallel to distal margin. On the upper surface of the hand are two
deep sulci ; on the lower surface the granules are smaller and more de-
pressed ; inner surface with a coarsely granulated area, reaching from the
middle to the upper margin. Fingers deeply sulcate, dactylus granulate on
basal portion in large cheliped, and on basal half in small cheliped. Fingers
not gaping in small cheliped, slightly gaping in large one ; large dactyl with
a strong basal tooth.

Legs spinulous. The merus has a single row of spinules on anterior
margin, the carpus and propodus each three rows, but on these joints the
spinules are obscured by hairs ; upper surface of merus almost smooth, of
next two joints more or less rough with sharp granules.

Dimensions : — £ type, length 7 mm., width 10 mm. ; fronto-orbital width
5.7 mm.j frontal width 3 mm.

Type locality : — This species inhabits Taboguilla Id., Panama. The type, a
£, was taken at low tide at a depth of one fathom, from coral, Oct. 31, 1904
(Cat. No. 32,859, U. S. N. M.). A much smaller £ was taken between tide
marks, Oct. 31, 1899.

The nearest species is 31. truneatifrons Rathbun 1 from deep water in the
Caribbean region, which has a horizontal front, the carapace with fewer hori-
zontal markings and rougher behind, the inner prominences of the wrist
spiniform, the legs much more slender.

Xanthodius sternberghii Stimpson.

Xanthodius sternberghii Stimpson, Ann. Lye. Nat. Hist. N. Y., 1859, 7, 52.

Taboguilla Id. ; between tide marks ; Oct. 31, 1899; 5 £, 7 ?.
Perico Id., Panama ; Oct. 26, 1901 ; 1 £ .

Cycloxanthops vittatus (Stimpson).

Xantho vittata Stimpson, Ann. Lye. Nat. Hist. N. Y., 1860, 7, 206.

Cycloxanthus vittatus A. Milne Edwards, Miss. Sci. au Mexique, Zool., 1879, pt. 5, 1,
259, pi. 46, fig. 5.

Perico Id., Panama, Oct. 26, 1904 ; 1 £.

1 Bull. Lab. Nat. Hist. State Univ. Iowa, 1898, 4, 274.

PORTUNIDAE. 71

Actaea dovii Stimpson.

Actea dovii Stimpson, Ann. Lye. Nat. Hist. N. Y., 1871, 10, 104.
Perico Id., Panama ; Oct. 26, 1904 ; 2 9.

Ozius verreauxii Saussure.

Ozius verreauxii Saussure, Rev. Mag. Zool., 1853, (2), 5, 359, pi. 12, fig. 1. A. Milne
Edwards, Miss. Sci. au Mexique, Zool., 1880, part 5, 1, 277, pi. 55, fig. 4.

Taboguilla Id. ; between tide marks; Oct. 31, 1904; 1 9.

Ozius agassizii A. Milne Edwards.

Ozius agassizii A. Milne Edwards, Miss. Sci. au Mexique, Zool., 1880, part 5, 1, p 279, pi.
55, fig. 1.

Taboguilla Island ; between tide marks; Oct 31, 1899 ; 4 S, 6 9, 10 juv.
Perico Id., Panama; Oct. 26, 1904 ;1<?,1 juv.

Heteractaea lunata (Milne Edwards and Lucas).

Heteractaea lunata A. Milne Edwards, Miss. Sci. au Mexique, Zool., 1880, part 5, 1,301, pi.
52, fig. 2.

Taboguilla Id.; between tide-marks; Oct. 31, 1899; 1 <?, 1 9.
Taboguilla Id.; from coral, 1 fath., low tide ; Oct. 31, 1904 ; 4 <$, 2 9, 1 juv.

Eriphia squamata Stimpson.

Eriphia squamata Stimpson, Ann. Lye. Nat. Hist. N. Y., 1859, 7, 56; 1860, 7, 217.
Taboguilla Id.; between tide-marks; Oct. 31, 1899; 2 9.

PORTUNIDAE.

Portunus (Achelous) afflnis (Faxon).

Achelous affinis Faxon, Bull. Mus. Comp. Zool., 1893, 24, 155; Mem. Mus. Comp. Zool.,
1895, 18, 23, pi. 4, figs. 1, 1 a, 1 b.

Off Acapulco, lat. 17° 20' N., long. 101° 32' W., surface, from turtle, sta-
tion 4594, Oct. 14, 1904 ; 11 specimens apparently half digested.

72 THE BRACHYURA.

Euphylax dovii Stimpson.

Euphylax dovii Stimpson, Ann. Lye. Nat. Hist. N. Y., 1860, 7, 226, pi. 5, fig. 5.
Euphylax dovii A. Milne Edwards, Miss. Sci. au Mexique, 1879, 204, pi. 38, fig. 2.

Off Gulf of Panama, lat. 7° 15' N., long. 82° 8' W., surface, station 4619,
Oct, 20. 1904; 1 9-

INACHIDAE.

Acanthonyx petiverii Milne Edwards.

Acanthonyx petiverii Milne Edwards, Hist. Nat. Crust., 1834, 1, 343.
Acanthonyx Petiveri A. Milne Edwards, Miss. Sci. au Mexique, Zool., 1878, part 5, 1, 143,
pi. 27, fig. 7, and synonymy.

Perico Id., Panama; Oct. 26, 1904; 1 <?.

Pelia paciflca A. Milne Edwards.

Pelia pacifica A. Milne Edwards, Miss. Sci. au Mexique, Zool., 1875, 1, part 5, 73, pi. 16,
6^3. Not Pelia pacifica Rathbun, Proc. U. S. Nat. Mus., 1893, 16, 90.

Perico Id., Panama; Oct. 26, 1904; 1 S, 2 9.

An examination of the specimens from the same locality as the type
(Bay of Panama) leads me to believe that the specimens that I have hitherto
assigned to P. pacifica are a distinct species. The specimens from Perico
Island are very short and broad ($, length 8.5, width 6.4 mm.) and have
very short horns, and in the £ the palms much enlarged and fingers gaping
at base.

The other form, which extends from Santa Catalina Id., Cal., probably to
Magdalena Bay, L. Cal., is longer and narrower (<?, Southern Calif, length
13.4 mm., width 8.5 mm.), the horns longer, and the palms of the <? only
slightly enlarged, tapering distally, fingers not gaping. I venture to give a
new name to this form — P. claum — the type being a <? from a lot collected
in Southern California by Dr. W. H. Dall (Cat. No. 16203, U. S. N. M.)

One specimen, a 6* , from off Magdalena Bay, L. O, station 2989, " Alba-
tross," which in 1893 (he. cit.) I called Pelia, sp., is very puzzling. It has the
claws of typical pacifica, but the carapace is not so wide ; but this may be due
to its greater size (8.6 mm. wide by 12.6 mm. long). On the whole I think
that it may be referred to the true pacifica, but more material is necessary
to determine this point.

INACHIDAE. 73

Scyramathia cornuta (Rathbun).
Auamathia cornuta Rathbun, Troc. U. S. Nat. Mus., 1898, 21, 571, pi. 41, fig. 2.

Ten miles from Hood Id., Galapagos; 633 fath., station 4641; Nov. 7,
1904; 1 <?.

Scyramathia vesicularis, sp. nov.

PI. 5, Fig. 7 ; PI. 8, Figs. 1, la.

Body and legs everywhere covered with a pubescence formed of spherical
vesicles; a few long, slender hairs on the gastric region, the lateral margins,
and the rostrum. Carapace armed with eighteen short, stout, and pointed
spines, of which four are on the gastric region, one is on the cardiac, one on
the intestinal region, four on each branchial region, one on each hepatic
region, and one above each eye ; in addition, the post-ocular lobe is narrow,
curved, and acute.

Rostrum composed of two slender divergent horns f- the length of the
rest of the carapace.

Eyes visible even when retracted against the post-ocular lobe.

The narrow basal antennal joint has an antero-external spine, and two
spines further back on the outer margin; flagella situated outside the rostrum.

Ischium and merus of outer maxillipeds with a concave surface.

Chelipeds (of <? ) just as long as the carapace and rostrum and little
stouter than the other legs ; arm with four short spines above, which increase
distally ; wrist with three or four similar spines ; palm with sides parallel, 1^
x as long as the fingers, which meet when closed.

Merus of all the ambulatory legs with a spine or tooth at the distal end.
1st pair H x as long as carapace and rostrum.

In the ? the rostrum is shorter, J length of remainder of carapace ; the
cheliped = length of carapace and half the rostrum ; the fingers are rela-
tively longer than in the <? ; 1st pair of ambulatories 1| x as long as
carapace and rostrum.

Dimensions. — S type, length 20.7 mm., width 11.5 mm., rostrum 6 mm.

Type locality. — S. E. of Hood Id., Galapagos, 300 fath., station 4642;
Nov. 7, 1904 ; 1 $ (type) 3 9 (2 gravid) Cat. No. 32,860, U. S. N. M.

This species in its numerous spines resembles S. pulchra (Miers),1 from the
Philippines and Andaman Sea, 130 to 561 fathoms, but differs from it in the
arrangement of the spines and the shorter legs.

1 "Challenger" Brachyura, 1886, 17, 26, pi. 4, fig. 1.

74 THE BRAG'HYURA.

Mithrax bellii Gerstaecker.

Mithrax uraua Bell, Proc. Zool. Soc. London, 1835, 3, 171, pub. Feb. 24, 1836 ; Trans.

Zool. Soc. London, 1836, 2, 52, pi. 10, figs. 2 and 3. A. Milne Edwards, Miss.

Sci. au Mexique, 1875, part 5, 1, 103. Not Cancer ursus Herbst.
Mithrax bellii Gerstaecker, Arch. f. Natur., 1856, 22, part 1, 112.
Mithrax bellii Rathbun, Proc. Wash. Acad. Sci., 1902, 4, 284.

Chatham Id., Galapagos ; shore ; Jan. 8, 1905 ; 1 ? juv.

The young of this species, as Bell has shown, presents such a different
aspect from the .adult that it might easily be mistaken for another species.
Length of young 9, Chatham Id., 21.7, width 20.7 mm. The body and legs,
except the chelae, are everywhere covered with a furry hair. The protuber-
ances are all sharp-pointed. The rostral horns curve toward each other ; the
pair of spines at the base of the horns are nearly as long as the horns and
diverge from each other; the next pair is very small. In the adult (<? from
Black Bight) the carapace is wider than long (63.6 mm. long x 65.4 mm.
wide), the surface is almost wholly naked, and the protuberances are very
stout, blunt tubercles.

Mithrax denticulatus Bell.

Mithrax denticulatus Bell, Trans. Zool. Soc. London, 1836, 2, 54, pi. 11, fig. 2.

Perico Id., Panama; Oct. 26, 1904; H,2?.

Thoe erosa Bell.

Thoe erosa Bell, Proc. Zool. Soc. London, 1835, 3, 171, pub. Feb. 24, 1836; Trans. Zool.
Soc. London, 1836, 2, 48, pi. 9, fig. 4. A. Milne Edwards, Miss. Sci. au Mexique,
1875, part 5, 1, pi. 19, fig. 4 ; 1S78, p. 121.

Taboguilla Id.; between tide-marks; Oct, 31, 1899; 1 S.
Perico Id., Panama; Oct. 26, 1904; 1 <?.

CALAPPIDAE.

Calappa convexa Saussure.

Calappa convexa Saussure, Rev. Mag. Zool., 1853, (2), 5, 362, pi. 13, fig. 3.
Taboguilla Id. ; shore ; Oct. 28, 1904 ; 1 i.

EXPLANATION OP PLATES.

Plate 1.

Plate 1.

Fig. 1. Pilodius paumotensis, j, type, x 2£.

Fig. 2. Actaea cavipes, <f, Boraboia, x 2J.

Fig. 3. Chlorodopsis scabricula, 9, Papeete, x 4.

Fig. 4. Caphyra rotundifrons, 9, Papeete, x 2\.

Fig. 5. Chlorodopsis venusta, $, type, x 2£.

Fig. 6. Platypodia digitalis, 5, type, x 2\.

Fig. 7. Ci/mo quadrilobatus, 9, Funafuti, xl|,

Fig. 8. Micropanope taborjuillensis, j, type, x 2£.

Fig. 9. Actaea remota, &, type, x 4.

Fig. 10. Cyclodius gracilis, 9, Funafuti, x 4.

Fig. 11. Leptodius efferens, j, type, x4.

Fig. 12. Actiiiiiniis iutegerrimus, 9, Fakarava, x4.

■Albatross" — Eastern Pacific Ex.

Crustacea Brachyura, Plate i.

:*v<*

SP*

MtUOTYPE CO., SOSTOh

Tlate 2.

Plate 2-

Fig. 1. Cattinectes alexandri, $, type, x 1\.
Fig. 2. Ifemigrapsus elongatus, <?, Tongatabu, x 2J.
Fig. 3. Ozius tricarinatus, $, type, nat. size.
Fig. 4. Ptychoynathus easterana, j, type, x 2J.
Fig. 5. Chlorodopsis sinnlpes, $, Borabora, x 2J.

Albatross" — Eastern Pacifii

I •

MELIOTYPE CO., BOSTON.

Plate 3.

Plate 3.

Fig. 1. Phymodius ungulatus, d1, Borabora, x 1|.

Fig. la. Same, under side.

Fig. 2. Phymodius ungulatus, j, Tougatabu, x 1J.

Fig. 2a. Same, under side.

Fig. 3. Phymodius ungulatus, d1, Bonin Islands, x 1J

Fig. 3«. Same, under side.

Fig. 4. Phymodius ungulatus, <s, Honolulu, x 1^.

Fig. 4a. Same, under side.

'Albatross"- Eastern Pacific Ex.

Crusts i B i Plate 3.

"TQP*-*

,

'

HELiOTVP£ CO., BOSTON.

Plate 4.

Plate 4.

Fig. 1. Phymodius ungulatus, $, Fakarava, x \\.

Fig. la. Same, under side.

Fig. 2. Phymodius ungulatus, 9, Borabora, x 1J.

Fig. 2a. Same, under side.

Fig. 3. Phymodius ungulatus, <j, Fakarava, x 1 J.

Fig. 3a. Same, under side.

Fig. 4. Phymodius ungulatus, &, Tari-Tari, x 1*.

Fig. 4a. Same, under side.

"Albatross" — Eastern Pacific Ex.

Crustacea Brachyura, Plate 4.

MEUOTYPE CO., aOSTQN.

Plate 5.

Plate 5.

Fig. 1. Pachygrapsus fakamvensis, a, type, nat. size.

Fig. 2. Sescmna (Parasesdrma) carolinensis, j, type, x 2|.

Fig. 2a. Same, under side.

Fig. 3. Lophomicippa limbata, $, type, x 4. (Some legs broken off. )

Fig. 4. Nucia gelida, 9, type, x 4.

Fig. 5. Cyclodius ornatus, $, Fakarava, x4.

Fig. 6. Parthenope (Parthenope) melana, ?, type, nat. size.

Fig. 7. Scyramut h ia vesicular is, j, type, xl|.

Fig. 8. Cycloxanthops cavatus, j, type, x 4. (Hind part foreshortened.)

Fig. 9. Thalamonyx parvidens, j, type, x lj.

■Albatross"- Eastern Pacific Ex.

Crust !■

HEUOTYPE CO., BOSTON.

Plate 6.

Plate 6.

Fig. 1. Lophomicippa limbata, 9, type, side view, x4.

Fig. la. First leg of same, x 8.

Fig. lb. Second leg of same, x 8.

Fig. lc. Third leg of same, x 8.

Fig. Id. J Fourth leg of same, x 8.

Fig. le. Maxilliped of same, x 16.

Fig. If. Front of same, x 8.

Fig. \y. Cheliped of same, x 12.

Fig. 2. Parthenope (Parthenope) melana, 9, type, x li.

Fig. 3. Cycloxanthojis cavatus, a, type, maxilliped, x 24.

Fig. 3a. Same, cheliped, x 8.

'Albatross" Eastern Pacific Ex.

i ea B racliy ura P

h

MtLIOTYPE CO., BOSTON.

Plate 7.

Plate 7.

Fig. 1. Actaea remota, <f, x3§.

Fig. 2. Hemigrapsus elongatus, j, Tongatabu, maxilliped, x 11.

Fig. 2a. Abdomen of same, x 1.

Fig. 3. Micropanope taboguillensis, $, type, abdomen, x 8.

Fig. 3a. Larger chela of same, x 4.

Fig. 4. Ftjfchognathus easterana, <?, type, maxilliped, x 8.

Fig. 4a. Abdomen of same, x 4f.

Fig. 5. Xanthias ponapensis, rf, type, x 3^.

Fig. ha. Abdomen of same, x 8.

Fig. 6. Leptodius efferens, j, type, larger chela, x 7£.

Fig. 6a. Abdomen of same, x 16.

Fig. 7. Cyclodius gracilis, 9, Funafuti, front, x 4.

Fig. 8. Cyclodius omatus, 9, Tari-Tari, front, x 7J.

Albatross"— Eastern Pacifii I

• vm-.i, Plate 7.

MEUOTYPE CO., BOSTON.

Plate 8.

Plate 8.

Fig. 1. Scyramathia vesieularis, $, type, x 2f.

Fig. la. Ventral view of anterior half of same, x 4.

Fig. 2. Pifodius paumotensis, <?, type, x 3£.

Fig. 2a. Chela of same, x 5f .

Fig. 2b. Abdomen of same, x 9.

Fig. 3. Actumnus integer rimus, 9, Fakarava, carapace, x ;

Fig. 3a. Cheliped of same, x 8.

Fig. 3!?. Longest leg of same, x 9$ .

'Albatross" Eastern Pacific Ex.

Crusts hyura, Pla

HtLIOTYPE CO., BOSTON.

Plate 9.

Plate 9.

Pig. 1. Sesarma (Parasesarma) carolinensis, <j, type, upper surface of movable finger,

x6|.

Fig. 2. Nucia gelida, 9, type, carapace, x 8.

Fig. la. Second leg of same, x 16+ .

Fig. 2b. Cheliped of same, x 13J.

Fig. 2c. Front view of same, x 19.

Fig. 3. Callinectes alexandri, j, Papeete, lateral teeth, x 4§.

Fig. 3a. Abdomen of same, x 4.

Fig. 8b. Front of same, x 4*.

Fig. 4. Platypodia digitalis, 9, type, right chela, x 4.

4

Fig. 4a. Left chela of same, x 4.

Fig. 5. Chlorodopsis scabricula, 9, Papeete, chela, x 6|.

Fig. 6. Pachygrapsus fakaravensis, <?, type, chela, x 2|.

Fig. 6a. Abdomen of same, x 2|.

••Albatross" — Eastern Pai

una, Pll

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'■'^K-T'-"~

4«

6a

HELIOTYPE CO., BOSTON.

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